This free chorus plugin sounds absolutely great, not any worse than the commercial Kjaerhus GMO (which imo means: it's the best chorus available as a VST plugin at the moment). Actually, I prefer it over the GMO (don't need 192 kHz support and oversampling) since if you are going just for a chorus in the Classic Chorus you have all what you need and nothing unneccessary, while GMO is a little more complicated. So I decided to stick with the classic series instead od getting GMO. However, I would any time be ready to pay (a reasonable price) for this plugin. Since it's free the vfm has to be unbeatable.
Feature-wise everything is there what you need to tweak the sound, maybe a phase control and a selection for the lfo-type would be nice, but it's not a must. the documentation provided is minimalistic but, anyway, a doc is not really nedded for this.
I never needed customer support so I can't rate it worse than 10, and the plug was very stable on my system so far.
The presets are good, but some more would be great. however, just play with the nobs and you will get the sound you are seeking.
user-interface: not really beautiful but one can live with it and it is functional.