I bought and sold the Dave Smith Sequential Prophet REV2 four times (!?) until my fifth time (the 16 voice keyboard) I realized what a chameleon and beautiful instrument it is.
I went through a couple of REV2s during my early explorations into "serious" synths and initially I wasn't crazy about the sounds.
After owning a few other higher-end synths (Pro 2, Prophet 6, Pro 3, Prologue, Take 5) I discovered it all comes down to programming and the REV2 hangs with the best of 'em.
I've bought and sold a lot since then, but this one is never leaving again....