LOL call me crazy but I don't use facebook app at all. Every fb app in the wp store right now has some or the other glitches. The official one is blessed with the most. Last one I tried and was a bit satisfied by was "facebook classic" if I remember it correctly. For now, I use IE only. It's much better than those crap apps...
yes, the IE version is better than any app. but why wouldn't they keep the top notification/home/chat/profile header bar always visible at top while scroll down. its so much easier than to scroll way up to go to other options.
For me the beta has been solid since the major update that occurred late summer early fall. Just have to make sure its configured right. Yes there are bugs but overall it runs pretty smooth and the issues with photos and what not I don't seem to have. Otherwise just use the browser....the app store ones are junk!