Feature:
No special features. Just solid construction and high quality materials.

Quality:
Construction is first-rate--not even any "orange peel" spots in the finish. Product is as sturdy as any acoustic guitar--let's face it, they are delicate instruments and one must respect them properly. OIf you can't do that, then buy a Takamine that you couldn't dent with a bowling and shape its sound with the electronics.

Value:
Absolutely.

Desirability:
Why would I want something that I could make good music without? This is simply the best and most versatile all-around guitar I have found for my purposes and all the sex appeal that other models and other brands may offer is worthless is they can't match this instrument's sound and ease of play.

Sound:
Nice fat trebles. Resonant bass. No wolf tones. Clear tone in all registers. Best with Martin SP 80/20 or John Pearce strings. When miking, you may need to reduce the bass just slightly because it is so resonant. But what an acoustic sound!

Support:
Only dealt with them with questions regarding this and other Gibson products. They have always responded within 24 hours to any question.

Overall:
It has a richer and more resonant tone than its competitors from Martin, Taylor, Larrivee, etc. I have played them all. Being made from Mahogany, it has a natural brightness, but the deeper tones also resonate freely. It has a woody quality to its sound, not steely like the others. I'd have to go with a Martin D-18 to even come close to the quality I like in the J-50. I like the sound best. What do I like least? The fact that I have only one of them.