I do and so far I really like the speed and size.
I love mine. I truly don't know if there's another tablet available that I'd prefer to use. My other tablet is a 10.1", and I prefer the 9" size (no more digital gymnastics using the keyboard) so much that it would take some significant advantages to go back to the 10.1 form factor. Taking a look at the options on Newegg:
Asus TF700 -- Pros: Much nicer display, more internal storage available, faster processor, a developer community!
Cons: 10.1", few apps use the higher resolution so it's good mainly for movies, complaints about performance lag and crashes, Asus quality and reliability!
Toshiba Excite 10 -- Similar specs to the A2109 but a better screen I'm sure (but the same res). 10.1"
Samsung Note 10.1 -- I've always thought this one looked interesting. Unfortunately, my disability has taken away my ability to write, so it doesn't make sense for me. I might really like this one otherwise.
TOSHIBA Excite 7.7 -- Ok, I might trade out for this one. Pretty much the same specs as the A2109, with an AMOLED screen, in a smaller form factor. Would I be happy with the size? That's the question.
Acer Iconia A700 -- Appears to be inferior to the TF700, in the same form factor.
Based on my personal preference and tablet usage -- which includes pointing the tab at my face, negating most viewing angle issues -- I don't think I'd prefer any of the above, except possibly the Excite 7.7. But in reality, price is a major consideration, and every tab above is twice the cost of the Lenovo (except the Acer). The bottom line is that the A2109 was a great purchase for me.