Opinions vary! There are quite a few. Goin forward on your next deal, I would NEVER paint over old wall paneling. Google wall liner paper. It covers those groves of the old wood paneling and is paintable. No one will know the difference unless they tap on it. Even then the wall liner will thicken it up some.
I agree with what you have been told about the appliances. That should always match cosmetically and be the same brand. Nothing wrong with granite counter tops. I put them in $400k plus houses here new construction. People love them. Don't see anything wrong with the cabinet in the bathroom (don't care for the color) but it should of had same matching granite as kitchen in both baths. At least that's how I do it and it always works.
I definitely don't care for the mix of gold or brass. Unless I missed the memo, that hasn't come back yet. I do have it in my house that we built 20 years ago. I'd have went with all stainless/chrome/brushed nickel OR oil rubbed bronze is what I have been using lately. With repose gray walls, and velvet white trim throughout the house.
The smaller bathroom definitely should have been updated as well.
As far as garage, and the feed back referencing the garage, that only reinforces what I have been saying for over 20 years that it is stupid to finish in garages (of course you didn't). People want a place to store their stuff AND park their vehicles. Storage at a minimum.
I've never put a lot of stock in staging (never have and never will) or planting bushes out front. Personally I hate them and see them as creating work but then again you got to have some kinda color and curb appeal. I'll tell the landscaper to put me some cheap colorful bushes out there and some colorful mulch as much as I hate mulch cause it attracts termites. It's cheaper.
I would have pressure washed the driveway as well. Not that it is killing your deal but looks dingy to me. A good cleaning will make it pop brighter and couldn't hurt.
I wish you well with it. Hope it sells soon. I can understand your concern.