TS3 did take up quite a bit of the screen at all times, so I like being able to *close* most of it to get a more unobstructed view.
Though while I think the TS4 UI needs a bit of *colour*, maybe some built-in re-skin options, it's honestly not *terribly* designed. TBH I'm not usually a huge fan of the minimalistic look of UI these days, like the Windows 7 flat white *everything* garbage.