I have it since over 3 years, I had previously a Mopho 4X, so DSi ( still at the time) wasn't unknown to me, I don't believe that it was ever to anybody that was ever into music production.
I had a small problem in the begging with it, I wanted the filter of the REV2 to sound like the Prophet 6 one..but it doesn't..it is different...I have found a kind of stepped filter spectrum that at first sounded much harsher and not as warm as its siblings or first degree cousins.
With time, I grew to love the filter, to accept its different nuances and even stepped edges. It is not as round as I reckoned I needed to create the emblematic brassy sound...but with time, I also learned how to find a sweet spot that gets very, very close.
The rest, is ridiculously deep, there's so many modulation alternatives that I started to appreciate more the new alternative routes against the more classic approach I wanted to achieve at the beginning.
The sequencer is super interesting too, I love it!
It is versatile, and that is what then a Prophet 6 is not as much, I would like also to have one, but it`s true that I wouldn't be using it for so many varied things as I do with the REV2.
The keyed is amazingly expressive, not just the aftertouch, but the velocity and the weight of the keys in itself is all very pleasurable to play.
There are now a few new synths on the market that have many different functionalities to offer, but in 2018, and in this price range, I couldn't have found a better option for me.
The DSi company, now Sequential, is amazingly helpful, I contact them more than once and they are maybe the best and more friendly guys I have ever sealed with.
Thomann is also pretty helpful and I bought equipment from them many times, I lost count, always very reasonable and responsible.