On PC I was getting crashes walking around town. It was horrible. I eventually disabled every addon and it's stable again. Unplayable with the worst UI in an MMO ever but at least it isn't crashing constantly.

No crashes for me running the 64 bit was smooth, my friend with a mac three crashes in less than an hour, I went back to the 32 bit, after about an hour got Client has stopped working, in guild chat tonight hearing a lot of guild mates crashing more than usual, some not crashing at all, goes back to what I say about ESO, the only thing consistent is the inconsistencies.