x2go or FreeNX?

Hi All
I run a couple of openSUSE machines that act like a remote access server using FreeNX. It runs fine but i see that long-standing issues are still not fixed like pageup/arrow keys from linux-to-linux sessions.

Nevermind, not a big issue.

I was just wondering if someone have experiences with x2go server, is it worth to try/use it? What are differencies/pro/cons of this server? I see that it also uses NX libraries and IIRC 2x.com is the commercial side of it. Do the 2x.com clients works with x2go servers?

Thaks for your time