Which is the better approach to get the latest OpenERP 7 source code and stable one for production use at my office catering for 5 workforce?

I know bzr can pull latest codes, but I recently deployed 1 at my office. Somehow it had the chrome bug rendering issue. Then I removed the bzr approach, and directly downloaded the nightly source files, it worked. No bugs.

By right, bzr way should work better than nightly source files right? Or bzr from branch 7.0 is not as stable as from trunk? or not as stable as codes places in the nightly source folders?

I am using ubuntu 12.04 LTS for my server. Any help? Thanks.