Installation of Drupal 7 or 7-dev

Hi,

I have several installations of Drupal 7, mostly upgraded Drupal 6 with a lot of modules which we have had a hell since module support wasn't very wide yet with the most popular modules, talking most about access control modules which is not surprisingly not yet a part of the standard core.

Besides modules, there have been several serious bugs with content type, converting fields and more, that is not imortand to flag here in this thread.

What I really wanna ask is this, is it better to install the current 7-dev instead of current 7 official release due to all bug fixes and enhancements ?

Thanks in advance.