When you get it, take the headphones and toss 'em. Go find a good set and the tone will come alive. I have not played through my amp yet with it but from other reviews I've read it sound great if you put it in your effects loop, but not straight in. Wish it had chorus and reverb/delay. Compression is a bit high. Overall good unit but not what you'd expect from the device.

I would like their optional power supply,butI don`t know where to buy it.

Feature:
The buttons sometimes don't stay down so you have to push several times to get it to stay down. There were no accessories as I bought this thing used but I don't see anything added to this thing that would improve it much. The most useful feature is probably the volume control that drops the volume pretty low so that nobody else has to hear how much it sucks. How about the supposedly stereo aux. input? Nope, not even that is stereo but passes the sound mono to the headphones. forget about jamming along with anything. The mix of the guitar and the input music is so close that either you listen to the mono mix or the guitar drowns it out. Terrible.

Quality:
Probably the best thing about this unit is it's very rugged build. The jacks are sturdier and stronger than ordinary jacks and can take a beating without jarring any of its solder connections loose. We'll see though. I'm still going to use this thing when I travel because I'm broke and can't afford the original thing, if it's even manufactured anymore. Looks like ol' Jim bought this thing out from Tom and cheapenized it. Sad. I use Jim Dunlop picks because they are the very best. Wish I could say same for the Guitar Ace.

Value:
I bought mine used for $45 and I think I spent too much. I have an old 80's headphone amp, Arion Hot Watt II, that atleast has stereo input, chorus in stereo and a comb filter like affect as well as decent distortion and I got it for $20. I think the Ace should be priced along the same. If Tom could have them drop his name off it, it'd probably sell for that.

Desirability:
Sex appeal? If this were compared to sex, I'd have to say it was some really bad sex. As it looks, it invites you to use it being black, very sturdy and most guitarists know that Tom Scholz made the best headphone amp in a box ever. This aint it.

Sound:
The sound of this thing leaves a lot to be desired. The only decent sounds are in the accoustic mode. I hate the built in compression that while reduces unwanted distortion, makes it drop in volume when you pick hard which I do. The distortion sucks completely. Even adding my sm-9 super metal pedal in front of it doesn't help. To top it off, it's not even in stereo but mono through headphones, something that impressed me with the original rockman. This thing aint even close. If I were Tom Scholz, I'd find a way to get my name off of this thing.

Ease of Use:
While the interface is pretty easy, there is just no getting good sound out of this thing. Like I said earlier, the built in compression pretty much kills any pedal you put in front to boost the very weak distortion. If you want to just strum along accoustic style, then maybe this things for you.

Support:
I went to the website and it sucks hardcore. I went to see if there was a way I could get stereo music through this thing so atleast the mono guitar would blend better making it nicer to jam along with songs and the support section of the website was pretty much 90% "buy this accessory or part" and very little of any info on what to do. Most of the website is devoted to buying and not enough set aside for questions like mine.

Overall:
I am probably going to place this in an ad similar to the one I answered for it and sell it. The Ace series doesn't impress much. Bring out the original equipment that made these things famous and now you're talking. Otherwise, this thing should be buried along with all of the other music gadgets that didn't quite take off.

Feature:
Had to purchase the power supply seperately. Really dumb. The only real useful feature is that you can play with an external source such as a CD player or tape deck. It really needs to have seperate clean and distortion settings along with the options of using reverb and chorus. Again, refer to the Rockman X100. I used a Fender Heartfield guitar which is a screaming guitar. Sound, options and volume were much better in the Rockman X100

Quality:
Seems to have been made well. Nice finish, just like the Rockman X100. No loose parts or cosmetic blemishes. It seems to be reliable. Dependability: We'll see. The old Rockman was known for scratchiness after a while and the power supplys didn't last. It seems like it will last a few years but again, we'll see.

Value:
Was definetly not worth what I paid for it, including the extra cost for the power supply.

Desirability:
It's fine.

Sound:
Simply duplicate the old Rockman X100 and you've got an awesome, "usable" product. Sound: Terrible Sound Quality: Terrible Sound Response to Playing: Terrible Sound is not expressive enough Product does not achieve what the old Rockman X100 does...not even close. It is compatible with any "style" Clean sound is better than istortion but is still poor Product sounds terrible "by itself" Sounds terrible with all of my of my other products Absolutely terrible live sound Doesn't matter which settings I use, it's terrible sounding

Ease of Use:
Very easy but again, so was the Rockman X100!

Support:
I emailed the company and haven't heard a word from them yet.

Overall:
I'm not satisfied at all. I would return it but I've tried every similar item on the market and none of them last, much less sound quite right. So, I'll wait until someone who "knows what they're doing" gets it right. This is so simple for any electrical sound engineer to do these days and everyone keeps producing cheap junk, to make a buck. Get it right and the customers will come!