Should I upgrade to Dolphin 7 "now"?

How  much more "unstable" is Dolphin 7 than the unstableness of Dolphin 6?  I currently have too many features in the 6 version that either don't work as smoothly as they should or NOT AT All!  I have been testing and checking out the 7 beta but so far can't see any reason not to go ahead and upgrade my own site to this version.  Are there any reasons I shouldn't if 6 is as far from perfect as it is?

Thanks in advance everyone.

If you have a live site, then whatever you do, dont install D7 just yet, its only in Beta with no upgrade path (in other words) you really have to start from scratch each time. Im sure when D7 is finished it will be better in some respects than D6, but for now, for a live site, it simply isnt stable enough.