Well, hmmmm...

I have both Home and Pro versions of XP running on a peer to peer home network. As far as networking capabilities go, XP sux ass!!! For an OS that was based on the NT Kernal its networking features suck ass. It isnt compatible with IPX Netbui ...actually everything except TCP\IP. Now that would be fine except that you can have only one instance of TCP\IP installed, so dont think about accesing more thatn one network.
Other than my hang ups about the network interface, I have no qualms with the OS. I has been extremely stable and smooth running. The only incompatibility was with Sygate Personal Firewall, but that was easily fixed ... anyways, I give it an 8/10