I was hoping to use Open Office on a netbook that didn’t have MS Office installed, but I needed to work on documents that would eventually end up as Word docs. It ended up being too much work cleaning up the Open Office doc once I copied it into Word. (I hope all that makes sense!)
I tried an online course and it did not take OO documents at all, I had to buy MS Office.
otherwise Wordpad was good enough for me. lol.
My advice is to use what works for you in your situation. For most home users, I think that is OOo. The price point can't be beat, and it looks as good as MS Office does--providing you do not have to convert docs back and forth.