Feature:
Will last the recreational player nearly indefinitely, the 3 hr-a-week player 3 to 6 months and the 8 hr-a-day pro a solid 30 days without breakage, tonal degradation or tuning problems.

Quality:
Well made, consistent, long-lasting strings. One time I had several sets (I buy 10 at a time and change monthly)where the end ferrels did not have enough winds on them and the strings would unravel at the ferrel under tension. I e-mailed the factory, got a quick and attentive ear, the problem resolved at quality ontrol and 3 free sets in a week and a factory apology! No problems since.

Value:
I've spent TONS more on things like Elixers (which are dead out of the box because of their coating), cost several times as much and go dead in 3 months with increasing tuning problems. Sure, they don't break for 6 months but the sound is "SUCK!" For $7.95 Adamas can't be beat! Try one set and you'll NEVER play anything else. I played D'Angelico's for years but quality control problems at the factory forced me to change (5 sets, back to back, dead out of the pak; factory ignored all calls, calls and e-mails).

Desirability:
Does not apply...

Sound:
Adamas sounded better and kept their clear, balanced tone superbly for 3 months. I spend the last 2 years playing every 12-string set I could find, kept notes, and kept them on the guitar till one broke, they went dead tonally or I just couldn't keep it in tune from one key to the next. These strings topped them all! An amazing value for the professional musician.

Ease of Use:
From fingerpicking to really digging in and thrash-strumming, these strings deliver it all! The lighter gauge keeps the bass from being overwhelming or getting muddy; it is always well-balanced tonally.

Support:
GREAT -- see above.

Overall:
If the factory quality control continues and the price remains the value it is, I'll never change!