In a simple understanding, these things are overpriced. I spent $500 on mine (Mostly from Birthday Money and a bonus I recently got at work.) and it really doesn't feel like it's worth even close to that. (Maybe 100-something, maybe 200, close to 250 possibly, but nowhere near 500.) However, despite this, I will try to get the most use out of this thing. It's not really a piece of junk in it's own right.
My choice of tablet was the Acer htc Flyer 7" tablet. It's small enough to fit into my pants pocket and feels rather light in my hand. It indeed doesn't hold much space, (Only 9 GB in this case.) but one must understand first hand that it wasn't even meant for something like this in the first place. The one thing it is meant for is mobile connectivity, which it does rather well in it's own right.
It's main attribute is documents and video on the go, which for the most part, it does well at. As long as you are within range of a connection, (mostly the Wi-Fi Hotspots out there.) you can surf decent video (up to 360p) and read all the on-line documents you want. However, the big problem with hotspots is that you can only be on-line for a limited amount of time and that limit varies from hotspot to hotspot. (I was able to find one in the huge outside mall near my home that goes for 30 minutes, but that's the best I could find so far. (Maybe there's a longer one out there, but I'm unsure right now.))
Typing is mediocre at best. If you are a phone-keyboard-texting-expert, you should feel right at home with the set-up. However, for one without much experience, you'll find yourself to be rather slow and take up a good chunk of time typing.
On top of that, it is sensitive with where you touch for the link. With the 7" screen, you really need to be precise with where you touch. It is especially cumbersome with YouTube, and not all too recommended if you're in an area where you'll be interrupted often.
It is more of a device meant to access stuff on "the cloud" as it were, and even then it is overpriced.
If you're planning to get one, do yourself a favor and find one with a discount on-line. (Even go for "Used" to save some bucks.) At least that way, you won't feel as cheapened-out as I was.
It is definitely good as a more mobile on-line access device, but at the end of the day, I find a laptop to be better for something mobile. (Despite the problems mine may have, I still find it more reliable.)
So yeah, that's my experience and boy, do I feel ripped off. -_-