Yes. I use it on my Linux boxes, and on my wife's and kid's Windows computers, as I'm too cheap to pay Microsoft's prices.
In summary, version 2.0 works quite well for us. The word processor and spreadsheet work great. Even the presentation package seems to work fairly well, though I do little original authoring with it, and mostly use it to view exisiting Power Point slides; it's hugely improved in that respect over version 1.X.
In shore, OpenOffice doesn't do everything thing Microsoft Office does, but it does everything I need it to.
The one negative I've found is that it tends to open the first window very slowly. Once that is open, additional windows open very quickly.