Also, while not truly terrible my experience with Postbank (in Germany) is awful. I wanted to close my account before, but the clerk in the branch I went to simply refused to do so (only much later did I learn that there is indeed some time limit for closure of checking accounts, but that clerk didn't even bother to mention those).
I need a bank to be first and foremost reliable, secondly efficient. WF, as far as I can tell, meets those requirements (well, they could improve on the speed of check transactions). If the clerks are friendly, I appreciate that, but I do not go to a bank to stoke my ego (once, long time ago, I got paid for three months worth of a contracting job at once and the clerk was very friendly -- that was somewhat unnerving).
That being said, Postbank is actually rather good. They have physical locations in every postal office, before their migration their online banking worked great. They used to be reliable, offered good conditions. Well, I'll propably not move anyway, assuming things return to normal once the migration project is done.