There are lots of threads here about PDAWin. As far as I know, this is the nearest thing to a user community that you will find.

A personal opinion? PDAWin is (just) the best of the Pronto/CCF emulators out there. You can put together a pretty damn fine CCF, and for most things it works well. It ain't perfect, by a long way, but it does the job. But it ain't been upgraded for a year and support seems to be non-existant.

On the other hand. TotalRemote seems to have a willing and active supplier, who is in the process of bringing the product up to scratch, and by the next release (soon?) it may well be better than PDAWin.