I just purchased this thing and really got into it yesterday. At first, I was alittle disappointed with the presets as they favored 80's type sounds instead of showing what this synth is truly capable of. After spending some time modding presets and getting afeel for programming it- I saw its true sonic capability, and I am amazed at its versatility! in short, this synth is well worth the money.
The gui is large enough for the functions and is figured out with relatively little effort. Programming can seem a bit intimidating, but is well worth the effort, you can get truly massive sounds and results out of this thing. stability in my main host(FL Studio) has so far been flawless. you can start using quite abit of CPU with this thing, so you have to keep the voices down and instances low. Otherwise, it is more fun than you should be allowed to have with a Vst.
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Some of their old awesome VSTs are already re-released in 64-bit and some new plugins were created during the last months. It is probable that all their other best BigTick plugins will be re-released too, Rhino included. Now... when... Nobody can't tell but I think that they are probably already working on them.