There are quite a few bugs at the moment, but much was the case when OFP first came out.
In fact, it wasn't until the US release, and Version 1.2 that OFP really came into it's own.
While I know there are issues, I wouldn't even consider not buying this game. Firstly I want to support BIS as much as possible to ensure they keep giving us games like OFP and ArmA, and secondly I know that unlike many other developers they won't walk away after 2 patches and ignore any remaining issues to work on their next release.
I mean afterall, OFP got to version 1.96. I don't know a single game where the devs gave that much support to the community. And after v1.46 most of the patches were just correcting minor issues that really didn't matter all that much.