Quality:
All great. They last for ages and down de-tune on you. They're quite thick, so they're really durable, perfect for road use.

Value:
They were quite expensive, but for the saound they give and the amount of time the last, well worth it!

Desirability:
They look so cool, it's great, especially if the kit matches them in some way. They feel great, even though they're thick they have a really good response and feel.

Sound:
I found them so easy to tune, even with really bad resonant heads, they sounded amazing after just a little bit of tweaking. There's little overtones, with a great fat sound. Mainly for like rock, etc, great for people who like their toms down tuned. In a recording they're a sound engineers dream, no overtones to get rid of, perfect sound. Live, not only will they look great, but provide all the attack you could want, with an amazing tone.

Ease of Use:
It was so easy to get them tuned to how I like it, down low, the overtones just didn't appear.

Support:
Never needed it.