My review lacks specific details, but I must assert that to my ears: XILS-Labs' Synthix and U-HE's DIVA are the finest software-based analog emulations to date. This is not to argue with there being many other analog e-mu's on the market that meet aspects of a Gold Standard, but as of late 2011/early 2012, I have not heard any soft synth that come closer to truly emulating an analog synthesizer. And to me, That's what it's really all about: The SOUND. Yes, admittedly, there are issues with Synthix that make it's present incarnation less then perfect; primarily a somewhat sluggish GUI running in some environments (keep in mind that I'm evaluating a 1.0 release) to not-so-positive comments regarding the front panel-whilst the first issue will probably soon be resolved (XILS-Labs is deadly-serious about all aspects of their work-I know this from being a license holder of both their XILS 3 Full as well as their brilliant Polykb), the second concern may be regarded as one of personal taste-the front panel/layout/etc. poses no obstacle to me getting work done.
It is an excellent emulation (the exact reflect if used without the improvements) of the 8 voice Elka Synthex which was very used in the 80's by Tangerine Dream for good number of their most wonderful pads and by Jean-Michel Jarre for many many many performances, but now with the advantage of the addition of a lot of functions that enhance the abilities of the VST to a top higher new class. A really beautiful software synth.