Feature:
Evan Tries to tell you that these drum heads have revelutionary feachures but I don't hear the differance, although they do have oils in them that most people try to look for when shpping for tom heads, because that usualy helps the quality.

Quality:
When I'm normaly playing and I realy get into it playing as hard as I can while keepin a steady beat the heads don't dent, but there was just one time I swang my are with my drum stick as hard as I could and then I dented (but I was surprized the dent wans't bigger).

Value:
I would say it's a desent value for the prise.

Sound:
Rings alittle much, but dampinning pads fix that, but you might not like the sound dampinning pads usually give drum heads so you might want to pay extra for better sounding heads.

Ease of Use:
Sets up like any other drum heads.

Support:
Haven't used it and don't think I'll need to.

Overall:
I'll probly keep these drum heads for a while but eventually I'll most likely get coated drum heads because there more durable and I personally like the sound a little more.