polyIblit

Maybe it's not the best virtual instrument for long convolving pads, but their oscillators and filters has enough thickness to fit it's sound quality among some analog machines.
I use it for basses and leads, and sometimes for a soft analog pad, but it is the king of bass sounds for some electronic styles. The envelopes fast response and also a faster filter than most around the net (free & commercial) will open you a door to get punchy sounds with only one oscillator... but there are two more to thicken the sound. In this point, the resonance may not work as you'd like, in fact doesn't autooscillate easily, but it helps keeping control over the sound... and if autoosc is needed, just push the reso to the top....

To use it you should have some experience with other easier instrument, because it's modulation capabilities are enough complex to get lost when modifying presets to fit a sound within a mix.

And referring to some of the questions about doc, support... I've never needed the documentation, and neither those presets (that are really useful, but just presets), and I've never thought:
"oh, sh** it'd be great to have a thing here to do somthing" or the opposite when I've found a lack.
Maybe its user interface is not the best due to its distribution and because all the knobs are of the same size, but when you get used to it that's not a problem.

It's correct and useful, and like analog machines, you'll have to tweak very fine it's knobs to get the sound that you're looking for (but sure you'll find it).Read Review