Well I gotta put in my 2 cents.
Thankfully the iPhone syncing issue is gone for me, but Im getting frustrated with iTunes. I recall my first impression, right after moving from Windows, was horrible. But then I learned it, figured out how it clicks, like how to get all the album artwork right etc. And I was loving it, no issues, smooth co-operation for the last 2 years. But one must be blind not to see that iTunes is becoming a bit like a combine harvester it tries to be and do everything. I still think its a great piece of software, but Im afraid that the bugs will eventually outshine the pros.
I believe they should rethink the iTunes as a music player/store/iPhone backup. When I think about it, then separating these functionalities doesnt seem like the best option, but the iTunes definitely needs a GUI (and not just a visual) overhaul in my opinion.
I do believe that Apple has some brainy guys working for them and that one day theyll come up with iTunes of my dreams☺
P.S. I really dont get that part of Apples philosophy regarding the stores. Whereas on OSX you have this everything in 1 iTunes (plus the AppStore app which serves as an updater) on the iOS you have everything separately music player, iTunes Store, App Store, iBooks and Newsstand. And speaking for myself I would prefer the iOS to either have all the stores in 1 place or each store inside the corresponding app, more or less like this:
applications store AppStore
iTunes store + music player > iTunes app
book store + book reader iBooks app
and I dont need the Newsstand, but ok: newsstand store + magazines Newsstand app☺