Ah yes, I remember a time when the thought of playing WoW without Flexbar sent shivers down my spine. Sadly, those times are long gone... I've since learned to live with bar mods who's standards and options were minuscule in comparison to the Flexbar of the past. There were a very few who came close.
However, I'm not sure if I would switch back now unless the flexibility was near what it use to be. Perhaps I'm just pessimistic, but I have my doubts about Flexbar2 living up to my expectations.
EDIT:
Well, I'm giving the newest version a test run. The framework is completed as far as the author(s) like, however there is no Ace based menu/gui to compliment the extensive slash commands. The author(s) is/are looking for talent to help with the creation of the GUI. Now, I know that older versions of Flexbar were completely slash command driven, and a simple menu interface was later implemented, but configuring an Ace based addon now, entirely by slash commands, feels so ghetto.