Diva is an analogue modelling synth that really captures the vibe of old analogue gear with some extra additions. It offers a flexible take when it comes to mixing and matching oscillators, envelopes and filters from a variety of classic machines. I personally found mixing FM into a Moog bass gives me some amazing EBM bass tones I can't get with anything else. It's sharp, snappy and full sounding. The sound quality is nigh on perfect...I'm not sure how you could really improve on this. We've reached the point where analog modelling is good enough to make it virtually indistinguishable from the real instruments. The UI is fabulous, it has a great preset system, it's possibly one of a very few synths that I think is in almost all senses, perfect. My only criticism would be that it's quite heavy on the CPU, so on an older system it struggled a bit running multiple instances but I've just upgraded to a Ryzen 3950X and it runs like a dream. I think it's just how things are going, you can have 'ok' and low CPU or you can have fantastic and higher CPU usage. This definitely goes down the later path, though you can enable eco CPU options (though you probably won't want to once you hear how it sounds). Sure, it's slightly pricey but you get a lot of swappable modules in terms of oscillators and filters so it carries a lot of flexibility with Moog, Juno and MS20 style options so sound wise you get a pretty broad palette. You can also dig under the hood on a per voice level and tweak the individual osc tuning which again, gives you a lot of scope to tune this to how perfect/wonky you want it to be. I like my synths a little wonky and characterful and it can absolutely do that.
All in, one of the best vst's you can buy, if not the best. It's been my go to bass synth since I got it. Absolutely great for anything needing a stand out bass sound, so great for techno or dance music or anything with classic analog character. The pads and leads are also great. Big selection of quality presets but being of the classic era, it's super easy to program your own from scratch, not to mention, actually a lot of fun. I think this will be right up there for most people as a 'go to' synth.
Diva became my favorite VST synth almost immediately. The sheer number of awesome presets is staggering. I have done nothing but play it for the last 2 nights. I am trying to get 10 posts on here because I want to write a review of it. not sure what number I'm on. anyway, if you have any question about whether you should get Diva, ask yourself the question: Do you have $10,000+ to spend on analogue hardware synths? No? Get Diva.
More knowledgeable users have said it all already. Diva is an incredible synthesizer, and by golly u-he even made a native Linux version. Works like a champ here on a multicore system running Fedora 21 with a realtime kernel. Thanks a million, Urs .