I suspect OSX makes a bit more sense if you learn the keyboard shortcuts. For example, I don't know how to delete files without using the menu - I expect it to involve the backspace key, but backspace doesn't seem to do anything. I can't seem to get windows to snap to the edges, but that's such a ridiculous omission that there's probably a keyboard shortcut for it as well.
Regarding the user interface, Finder doesn't appear to find anything. Search terms like *.pdf seem reasonable to me but don't seem to achieve anything. Launchpad seems to promise much of the functionality that I expected from Finder, except only some programs show up there. The app store doesn't include programs that are readily available for OSX if you search for them in a browser. It's also convinced I'm based in the US and then refuses to install anything when it realises I'm in the UK.
Installing programs which aren't in the app store involves dragging icons around then wondering where the files have ended up since finder doesn't know. I believe there are third party repositories modelled on the *bsd or linux methods, but I haven't set up any. The included unix toolchain is badly outdated which makes cross-platform compilation irritating. Overall it's most reminiscent of searching cnet for potentially useful programs circa 98se.
Overall the learning curve is too steep for me to bother with. I just use terminal instead.
