Well, I have owned my Note Pro 12.2 for some months now, and I am not aware of having any real bugs problem.
Also, while I did have some probs with screen mirroring, I seem to have figured out what caused this problem, and seem able to get around it quite well - by the way, because I don't have a new(er) Samsung TV, but a 6-8 yr old Panasonic Plasma, I use the Netgear Push2TV 3000 for the screen mirroring.
I can also control my computer, and run programs on my computer from my Note Pro, on the Note Pro screen. I use a universal remote app to control all of the functions of my TV, AV Receiver, Blu-ray player, Cable TV box. And I use another remote app to read and acitivate music, photo and movie files on a hard drive attached to my blu-ray player to run on the blu-ray, which saves turning on my 50" plasma just to read the music files to pick an album.
When out and about, if I sit down by myself for a meal at a cafe, I can either read an e-book, or watch a full-HD movie on the beautifully sharp Note Pro screen (and this is one of the areas where the bigger 12.2" screen really shines over 10" tablet screens).
I have no problem browsing the web, using either the in-built browser, or Chrome - and watching you-tube videos.
So, Mr fairfieldwizard, I don't know what your problem is, but braini4c, I suggest you try and find who, if any, of your friends may have bought a Note Pro 12, and see what they think, and ask to sit down with it for an hour to see what YOU think.
Oh, no, I do not work for Samsung, nor do any of my family or friends (as far as I know): I am just someone who, after a lot of web-surfing, decided that the Note Pro seemed to be my tablet of choice, and bought it. And as they say, I have lived happily ever after.