I run on a pretty fast computer with a respectable internet connection. I like watching all of my videos in the highest resolution. I do find it slightly annoying to have to select 720p every time I click on a new video. The video player does seem buggy, and every time I do switch I sometimes get problems (which is an unrelated issue really).

I think it would be neat if you could set a default video resolution in your account settings (under the elite menu somewhere, perhaps).