Please keep things positive. Best advise I believe is to try out different sites. Find what works well for you. If you don't like it, don't go back and try another site. Nothing says you only have to play on 1 site. At one time, I played on about 6 different turn-based game sites.
Great news about the new server. It will be super when GT is fast and efficient.
HOWEVER ... there is a teeny weeny problem with the update. The new server is located in California, and they got hit with the worst storm in California history. So the update is going to take longer than expected - I believe it will be finished about 6 hours from now. If the transfer aborts because of the storms then it will have to be redone, but lets hope it all goes through smoothly first time.