I have this one, and the acer iconia tf700 both, and Ive used an 2010 ipad whichever that one is. Its a good tablet. Performs well, no excessive lag. The screen is fine, people complaining about it are making up things in their own head. We've watched videos on it, used it for reading books, and its main use of taking notes.
the thing that takes it above the rest is the stylus. Absolutely nothing beats it for input accuracy. We tried several other tablets, and even bought that tf700 before the note thinking we could use it them for taking notes in class.
No go. No matter how we tried, what applications we put on them, the input just wasn't accurate enough and/or fast enough to write like normal. With the note you can write like normal.
Still haven't gotten the hang of using a tablet for artistic purposes. This is the only one with input accurate enough to even start trying without getting frustrated within minutes though.
Oh, and the multi app thing is really nothing to sniff at either. We've made good use of that, especially when studying. If you want to look at a page and be taking notes at the same time, or watch a class video and take notes, this is the best way to do it. (the smaller note is a joke for this, its just too small.)
You can pull up a web page, and Snote at the same time and take notes on it. Plus there are a few things like the calculator that you can pull up as a 3rd floating window. (very handy with the calculator) This is an ability none of the other tablets have, and its been a useful tool.
Good tablet. Usually goes for more then this price.