All these "niggles" could be fixed in about 5 minutes. As a power user you should be able to deal with it.
I'm certain, given time, a lot of the frustrations of Win 8.1 can be circumvented. Unfortunately I tend to want to use my PCs as a Tool - not some sort of mental challenge!
As an example, may I compare my Desktop PC (Win 8.1, but with "Classic-Start" installed), against a brand new Laptop with just 8.1 - both with MS Office installed.
I want to start MS Word (not exactly an "obscure" program, which is NOT an App in the "Metro" sense, but a proper Windows Application that launches in a Windows type of Screen ), both from the Desktop Screen:-
PC:-
1 - Click Start
2 - Click Word
LapTop:-
1 - Click Start (goes into Metro Mode)
2 - Locate & click down-arrow to get into Apps Screen (which are sorted by name) & look for either "Word" or "Office"
3 - Scroll to the end of the Apps List - not there!
4 - Keep Scrolling to find "other Lists", which ultimately includes a MS Office List
5 - Eventually click on "Word"
Needless to say, I will be installing the non-MS Classic-Start onto my new Laptop as soon as possible!
I've yet to find anyone that has clarified the advantages of "Metro" on a "Work-horse" Computer!