who uses litespeed?

I've been reading a bit about litespeed, and I would like to get a feel
for how many people use it, and what they think about it.

Thanks,
Ben Lisbakken

Also, what's the most stable, best performance way to run a rails
application on it?

Ruby LiteSpeed API (Ruby LSAPI)
LiteSpeed RubyRunner (Run CGI in persistent interpreter like mod_perl
to perl)
FastCGI
Mongrel
CGI

Use their LSAPI as they provide support for it and the configuration is
simpler.