Quality:
The quality of the guitars being made today are much better than those of the 80's like mine. Action is better (lower), the bridge saddle is thick allowing better intonation adjustment, and also higher, which brings out more sound. I've had no work done to mine in 23 years, and it still plays as well as it did when brand new -- with the exception of being due for some fret work thanks to being played.

Value:
The only guitars I like as much as mine are either priceless vintage guitars or else very expensive guitars, like Koa Taylors and custom guitars. There are excellent guitars at less than half the price, but none I like nearly as much.

Desirability:
If I found a better guitar I could afford, I'd buy it in a flash.

Sound:
I've played mine regularly, in the home and on stage, since I got it new in 1982. Great sound to begin with, and it's mellowed a bit with age (or perhaps I have) and sounds even better now. The scalloped bracing gives this guitar much more life than a D18, D28, or D35, as it allows the top to vibrate much more freely. It's a much louder guitar than any other dreadnaught in its price rage or below. This is a great guitar for people who want a single guitar to use for both fingerpicking and flatpicking, lead and rhythm. Deep, resonant tone really holds a tune together for rhythm playing, especially helpful when there's no bass player. The best part is how lively it sounds when fingerpicked with bare fingers -- you don't need plastic fingerpicks with this baby. Yet the sound still holds together excellently for deep, hard strumming. Alternate tunings come to life. There's gold inside these guitars, all you have to do is let it out. Sounds great recorded with SM57 and mixer preamps (you can hear my recordings at learjeff.com for a clue). For recordings, a low mid EQ scoop is necessary even more than most dreadnaughts, due to the full bottom end. Best with 80/20 strings -- sounds too brassy with phosphor bronze. However, phosphor bronze strings can help on stage. It mikes easily for acoustic gigs. It's probably not the best guitar (not bright & tinny enough) for classic rock band use alongside electrics.

Overall:
My son will inherit this guitar.

Feature:
Not really applicable, but I love rosewood back & sides, spruce top, and ebony fingerboard (which will last longer than any other common wood). I've played the heck out of mine for two decades.

Quality:
I've tried a number lately in stores, and they're all remarkably similar. This is one of the few guitars (like Taylors) that you can buy sight unseen.

Value:
Other than a couple much more expensive Taylor models, I haven't ever played a guitar I like better.

Desirability:
Every musician I play with covets my guitar, except for a few who like a much brighter ("tinglier") sound like the Martin O series, or people who have "super premium" guitars like top of the line Taylors.

Sound:
Deep and clear sound, crisp and responsive. Records well, with proper mike placement (typical for dreadnoughts -- otherwise boomy at 150 Hz). Had it since I bought it new in 1981, and the ones they're building today are improved in several ways, especially the bridge saddle. The sound is especially responsive to finger-picking, thanks to the scalloped X bracing. Yet it's solid enough to handle VERY hard plectrum picking or strumming. If you want one guitar for both purposes, this is your baby. If you can afford two premium guitars, you might want a D28 or HD28 for plectrum, and a Taylor or Bourgeoise for fingerpicking.

Overall:
If I had it to do over again, 10 times out of 10 I'd buy this same guitar. If it was stolen or destroyed, I'd go right out and get one just like it, only the wood wouldn't have that nice aged color and finish "checking" that people love -- on the other hand, the newer ones have better action, intonation, and slightly bigger sound thanks to improvements in bridge and saddle.

Feature:
i guess if you wanted a pickup there would be something to improve on.

Quality:
Again a truly beautiful guitar in appreance and playability. It is a joy to have in ones hands.

Value:
I felt i got a good deal when i bought it. I would say the quality and tone is great and how do you put a price on it.

Desirability:
If you play it and close your eyes and listen to it and feel the resonance you will be hooked.

Sound:
Beautiful balanced tone that improves with age. I have gont through a lot of guitars and primaraly used acoustics for practice this one opened my eyes it is truly a responsive guitar. I wish i would have sprung for one a long time ago. I wasted a lot of time being a dumbass. (the others are just a good syndrome in my view they arent)

Ease of Use:
See above.

Support:
I would expect it to be good but have never needed any.

Overall:
Great guitars only get better with age.

I own a martin 00028ec, a martin D1-12,a 1977 guild D-50,a taylor 910, a big baby taylor,and a rainsong carbon graphite guitar and finally a martin HD-28. They line up as follows.
#1 martin HD-28
#2 martin 00028-ec
#3 martin D1-12(twelve string)
#4 rainsong DR-1100
#5 taylor 910-D
#6 taylor (big baby)
#7 guild D-50 (needs some work)
And there you have it! and martins HD-28 is clearly the winner in terms of sound,tone beauty,and outstanding depth.Had i known this earlier i would now own but one single guitar---a martin HD-28.