Best synth I've ever owned, hands down!
First, the negative. The ONLY reason I couldn't give this product a full "5.0" rating is because of the horrible, horrible, horrible (did someone say "horrible"?) patch indexing. Endlessly scrolling through meaningless number after number to get to the patch you want to play is just... irritating to say the least. A larger display with the ability to give patches meaningful names would have been nice. As it stands, you better have a pen and notebook with a patch list on it handy, or you could spend the majority of your time just trying to find that awesome patch you made earlier.
THAT said, the rest is gravy! This thing sounds absolutely crisp, buttery, sharp, and warm when you need it to. I cannot describe the sound you can get from this thing considering the price point - you simply have to hear it for yourself. There are no on-board effects (which is fine, I'm sure saving on the cost) so you'll have to look elsewhere for that. There is a dedicated knob or button for almost everything on this synth, so tweaking and creating patches from scratch is a breeze without even opening the manual. Anyone with any synth experience at all will be right at home with this product.
In closing, the only negative thing I say say about this synth is that there needs to be a better way to navigate the patches! Other than that, this synth simply has to be heard to be believed! If you're thinking about buying this synth, Do. It. Now.