Having sworn by Vic Firth sticks for many years as a gigging drummer for their high quality control (one of my mates uses the saying "they're the only sticks that aren't toys!") I decided to recommend these pads to a drum student of mine who wanted to lower the volume of his new drumkit in his house (save his folks the headache!)
When he later brought these pads to the lessons I was very surprised by their quality. I'd never used muffling devices such as these when I was a beginner, as I used to believe strongly in that they would affect the feel and true rebound of a drumskin by either giving you a bouncier representation of what a drum feels like, or a slacker, more difficult feel. But I am very pleased that I recommended these to him now, as I can see their quality control obviously carries over into these pads (seamless plastic, no rough edges), each perfectly fits their respectively sized drums, and most importantly, they do feel like you're playing the drums, just quieter. Exactly what you expect.
I would be surprised if Vic released any product that was bad, these are well worth the money (and the lack of tinnitis brought about!!) :)