So, to those of you who have upgraded: What are your thoughts? Happy with it so far?
I run a WHMCS install for managing the billing of advertisers but haven't upgraded yet since some comments here weren't super positive. Though upgrading is on my to-do list, just after I do everything else that is on my list as well...
Upgraded when 6.0.1 come out, haven't had any major issues, had one add-on which was not fully compatible (Stripe Payment's) with the new client theme, however this is currently being worked on by the dev's of the add-on.
Apart from that yet to find any bug's that have caused me any issues...yet.