Feature:
The rhythm coach is very useful. The rhythms are easy to set up. I have not used many of the other features because the instruction sheet is very basic.

Quality:
It seems to hold up well. I have dropped it a few times and it still works.

Value:
It is expensive, but does have many features that other metronomes do not have. I used the Tama metronome similar to this one....features not as extensive.

Desirability:
O.K. I would prefer it to stand horizontal rather than vertical.

Sound:
Has 4 different beat sounds...some are annoying. Should be louder.

Ease of Use:
The instruction sheet is not very informative. The jog wheel is great. It makes it fast to switch to different tempos.

Support:
Don't know.

Overall:
I will use it until it stops working or until I find something I like better.

Feature:
rhythm coach, built in pitch checker, and loop with 50 memory slots, its great.

Quality:
Great. I's dropped it twice the day I got it (today) and it still in perfect condition. Just don't mount it on a Gibraltar stand, because the un-threaded part is too long on their stansa, along with tama's. I had to settle with a sound percussion mount (works fine, but not as adjustable as a Gibraltar)

Value:
Little high in price, but a must for any serious drummer.

Desirability:
Great. best one out there for a drummer.

Sound:
pretty loud, I can hear it over my drums when I have headphone in and music playing through the input, sound 2 really cuts through any mix you have. could be a bit louder, though, but its still loud enough

Ease of Use:
read the manual, or you will not be able to use everything it has to offer, but once you read it, its all second nature to you.

Overall:
I think this will last me a lifetime. I hope to never have to replace it, but if I do it will be with another db-90. This has the MOST features a drummer could want, and need. this is really the metronome you should get. get it, and don't look back.

Feature:
I LOVE THE CLAMP FOR STAND MOUTING

Quality:
FOR THE SOUND BUY A SMALL CONSOL LIKE A BERINGER AT $16.00 THE SOUND IS BETER THAN JUST PUTING THE HEADPHONE AND YOU CAN MIX OTHER THING AS WELL.

Value:
I HAVE LOOK AT EVERY ONE ON THE MARKET AND FOR THE PRICE THIS IS THE BEST VALUE FOR DOLLARD ON THE MARKET

Sound:
WHAT I LOVE THE MOST IS THAT I CAN LISTEN TO JUST ONE PART AT THE TIME LIKE THE HI HAT OR THE BASS LINE AND I GET THE BEAT IN PLACE VERY FAST IT WILL IMPROUVE MY TIME KEEPING A LOT.

Ease of Use:
YOU HAVE TO READ THE INSTRUTION OR ELSE YOU WILL ONLY USE 10 % OF IT'S CAPABALITY ONCE YOU READ IT EVERYTHING IS EASY AND SIMPLE.