I have first-generation EC2 Coateds on my toms, I bought them back in 2007 and then put the drums in storage until just recently. As a result they have maybe 4-5 months actual play time on them.
I get plenty of sustain but the attack seems to dominate at low tunings. Recently I got a little tired of the somewhat choked sound and peeled the foil rings off the bottom; I got a somewhat more open sound, closer to a G2 but with a little less overtone. But I would imagine that does it for whatever warranty I might have got.
On the CD I recorded with these heads on my toms, the toms sound throaty and full, but with a lot of attack. Here's probably the best representative song from that CD. The resos are stock Yamahas. Miked with one of those inexpensive CAD mike kits.