Learning Project: How is Badumna for a server?

I am building a small game in which users can talk, move etc. with an authoritative server as a learning experience in networking. Unity seems a great for the client but a bit lame for the server. Badumna caught my eye as a good server tool. Is using Badumna a good idea, or would something else be better?

Thanks in advance!

I've been looking for networking suites as well, check out http://www.firstcontactstudios.com/BeamServer/ too.