Having owned my SP2 for over a month now (most of it on the road), I can say that I am quite pleased with my purchase. BUT I can see why some people may not be. The Modern/Metro part of the device is perfectly suited to the touch/pen user interface. The "Desktop" is much better suited to the M/K interface. The device is absolutely a compromise. It is the very nature of the device. Win8 is attempting the first step into an all touch desktop OS (Modern/Metro) while retaining the legacy support (Desktop) that current users demand. That is why they sell keyboard attachments and mice as options. (I have a Type Cover 2 and Arc Surface Ed. Mouse.) I am a power user and gamer and I understood the limitations of the device. The device is not for everyone, nor is it marketed as such. It is great for College students and mobile professionals who need a compact, lightweight device and artists who like the high resolution display, legacy/x86 desktop applications and digitizer input. It makes for a pretty good mobile gaming PC as well if you can live with the hardware limitations (not much worse than the X360 or PS3).
My only gripe is the inconsistency of the UI scaling. Some programs are crisp while others are blurry and don't scale as well. It is hard to place blame for this issue. Part of it is MS for not enforcing some sort of UI scaling compatibility for desktop programs, part of it is on developers not realizing that resolutions are increasing rapidly and not supporting scaling on their own, and part of it is the support for legacy programs that were coded before these things were even an issue. Heck, 10 years ago, nobody in the mainstream would have imagined that touch interface computers would be mainstream devices (See iPad, Surface, Nexus 7/10, etc), so I doubt they were designing interfaces with that usage in mind. Adobe has very little excuse, but that is a different rant.
Expectations should always be tempered with a healthy dose of reality, or any device would be a disappointment. A bit of product research and a basic understanding of the hardware used would help to eliminate many of the gripes with the device. I'm not downplaying any issues that you may be facing. I have already had my share of driver issues (looking at you, Intel) with my SP2. I like mine and I'll be keeping it, but I wouldn't recommend it to many of my friends who only want a tablet or laptop experience. At least on the Windows side of things, we have a LOT of size, spec, feature options, so there should be a "right" product out there for everyone. I hope those who did return their SP2s find a better device for their needs.
~Ex