It is significantly faster to post, though I still wouldn't call it fast. My first attempt was maybe 20-30 seconds to post and repaint the page, where the previous iteration sometimes just didn't ever repaint. Hopefully this will help some of the double-posters out there to avoid that particular faux pas.
I also did a couple searches, and they are fast enough in my book. Of course, they were fast enough for me on the previous server. They might be a bit faster, but I can't say for sure.
Also note that I am on the east coast. I didn't check to see exactly where your server is, but there's definitely some transmission delay from out here. I am seeing about 1/10th second round-trip time, though that should be a small fraction of the total on post and search operations. Other navigation seems pretty snappy when you take the transmission delay into account.
Congrats on a successful move!
-Bob