I've got new Fujitsu AH532 with C-2230 since January. Since the day one the reception is unbelievably weak, I could have half bars when standing behind the wooden (or rather paper) wall 10cm thick. Connections may be working for some time, but than suddenly it drops. I always update driver to the latest one, but it never helps. I had the laptop open and checked the connections, both antennas are connected (tried to take it out and than in and they definitely are connected, without the connection I got no reception at all).
I really hope this can be fixed soon with new promised drivers, it really is annoying to have USB stick hanging from the machine at all times.