I experimented with all the main manufacturers heads on my snare drum. The coating on an Aquarian head definitely lasts longer then on any other make of drum head. It never seems to wear. The sound characteristics of Aquarian heads, however, are quite dark. I find remo the brightest, Evans in the middle, and Aquarian definitely the darkest of the 3 in sound.
The response of these heads is very good, the quality and coating is excellent, but what I would say is choose your heads according to the sound you want. I tend to want a brighter sound these days, but you can use these on, say, a steel snare drum to make it sound more 'woody', and if I was to use my drum kit for teaching, I would fit it with these heads as they last so well.