I personally REALLY hated it the first time I saw it, but as first and foremost a D&D player of 20 years... It has really really grown on me. The ability to turn it to turn based encounters whenever I want but still keep my other party members out of it if they aren't in that same zone. Awesome.
The turn based nature of the combat itself will be more tactical and easier to think about for sure, which I quite like... There is a sense of urgency with the BG1 and 2 real time combat with pause that you won't get here, but overall, I think I'm on board to give it a real shot.
The bottom line is I would hate to have a game that I have been waiting on for so long, be ruined by my pre-determined bias and not having have tried it yet. Larian know more about games than I do, so I'm inclined to trust their decision until I've played it for myself
