I hopped on the 250 server once when it first came up and again the other night, both times got exactly 88 ping, so there's no reason to play it over the normal servers unless everyone else is playing there. There was (is?) a native siege server with 200+ slots up on weekends and it was really fun having those 100 vs. 100 battles despite whatever the ping was.
We now have a West Coast server, very very new. However, it is not yet connected to the data base, though I would love for this to happen. 38 Ping feels amazing when I am used to the 80s or 90s on other servers.
Any word on whether it'll be a battle or siege server? Either way, yay. I'm in LA so my ping on the NA_Siege server is normally in the 80's, at best 68 and when it's 100 slots about 90-100+ ping. At least west coast people have the TX battle server now which has a good ping and population, I can get about 50 ping on it and most of the other people playing it seem to have about the same.