I got a years use of the most transformational device I've ever owned or had the pleasure of using. I shed something in the neighborhood of 2500 pounds of carried weight (5+ pound MBP, Kindle 2, chargers, cases, etc. carried every day for a year) and my back is thrilled for it. I've become more productive and am now (again) a voracious reader of scripts and books.
Plus the 4.3 benefits mentioned above. In fact, the 4.3 benefits are sufficient (for now) that I have chosen to hold off on upgrading to the iPad 2. Given my usage pattern and penchant for gadget lust that's kind of remarkable.
Finally, used the Xcode trick to unhide the 4/5 finger gestures and frankly it feels like a new device.
Zero complaints.