Feature:
Packed with features as far as video game controllers go. Highly adjustable, you can move the drums/cymbals wherever you want with wing nuts. Also, the pads AND cymbals are velocity sensitive, so the louder you hit them the louder they will play in rock band.

Quality:
Once again I'm grading this as a game controller, not a full-fledged electronic set. The quality is great! It feels natural (once you get a feel for it anyway) and is highly adjustable. Good bounce on all the pads, not loud, the whole thing is stable, it just don't feel cheap at all. (still, be careful not to over-tighten anything) also of note, the pedal feels much more solid, it's looser and easier to press, a bit louder but it's worth it to not have a pedal that's going to snap on you. one more thing, the tracking is way better, you get a lot less dropped notes. this is pretty important in RB2, as I've already run into a few songs with very fast straight 16ths on the snare that i KNOW would get dropped on the RB1 set but i can get up the 4x multiplier easy with this set (provided i pay attention to the tempo :P )

Value:
Pricey, but worth every penny if you're into drumming and like to play rock band.

Desirability:
This set makes chicks dig you. Or if you're a chick and you have this....... call me.

Sound:
Not really much to say about the sound, it's an electronic set and i don't have the drum module. As far as volume, the pads are quieter than the stock RB1 drums. I've heard the RB2 drums come with silencers so I can't compare that.

Ease of Use:
Ease of use.... as far as the set-up, it takes quite awhile and the instructions aren't too detailed, but even so putting it all together is quite easy (though a little extra length on the eye bolts for the cymbals would have been nice). Overall, took between 1 - 1.5 hours for me and I haven't ever set up an electronic kit before.

Support:
I haven't actually dealt with Ion, but I pre-ordered the set and it arrived the day after RB2 came out (i pre-ordered late, from what I hear if you pre-ordered in august they came the week before RB2 was released)

Overall:
GREAT product, definitely worth the upgrade from the RB1 set (i would assume the RB2 set as well, they're basically the same). If you're a drummer that loves your video games and don't want to take the time/effort/money to mod a higher-end set for use with rock band, this baby is for you.

Feature:
More then meets the needs for playing the game. The build is extremely sold and though people complain about the hats wing nuts not being metal they are just nitpicking. The pads have a very nice bounce and the metal/plastic kick pedal is light years beyond the cheap plastic standard kick pedal. The set is made out of sturdy light weight aluminum tubing, heavy plastic (for the rims and parts of the kick pedal Please keep in mind that this is a game controller so drummers out there its not a set of V-Drums and they will never be so relax..

Quality:
Pretty damn good.. specially for a game peripheral

Value:
Buy it... totally worth it..

Sound:
Well they don't make sound on their own so don't know if this really applies.. But I will say that Rock Band 2 really takes advantage of these drums, the sounds soft or hard depending on the hits and in drum trainer mode the game can tell the difference between the hats/cymbals and the pads (so even though it's green it will play a tom if you hit a pad or a crash if you hit the hats/cymbals)

Ease of Use:
Takes a bit of work to setup and get adjusted properly but once it's done it's easy to use.

Support:
No idea haven't needed any support..

Overall:
It's a great deal.. go for it..