I've only had it for a few days now, but first impressions usually stay with you. The quality seems very good and it is very easy to set up, adjust and balance everything the way you like. Some have commented about it's weight, but I am very happy with it as it is still lighter than my old double pedal (an old Tama double pedal which was purchased some 20+ years ago, second-handed). The drum key which is included in the slave pedal is a nice little bonus, although I only noticed after I had everything set up (despite reading about it in other reviews). The feeling while playing is much smoother than my old pedal and despite the difference, I forgot I had something different under my feet a few moments after starting to play.
Personally, I can't ask for anything more, only the test of time will tell. But from what I've seen so far, I'm not worried at all.