Braindance is the coolest thing this game has done, but as far as I've seen, it's criminally underused. Imagine if a bunch of the shitty, generic, "kill everyone in a warehouse," side quests were solving mysteries using Braindance tech. That would have been awesome.
Yeah I love the BD analysis and it would be perfect for detective work. It's not got replayability (because once you know you know) but it would be great if there were a few more of them.
Re. the game as a whole, it's clear that some very brilliant people worked on it, as well as some very average people worked on it. There are flashes of greatness all the way through, in some of the quests, in some of the storytelling, the writing, the art design, even the gameplay and progression, but then there's loads of gank too.
I think (as has been mooted), the problem was probably the leads being relatively inexperienced people who hadn't made games, while some of the boots on the ground people were highly experienced (had even worked on things like GTA). Miscommunication and bad management.
There's a timeline floating around somewhere, don't know how trustworthy it is, but it does make perfect sense of the whole thing. Basically at some point a lot of the best (and most importantly,
most experienced) developers at CDPR who'd been working on the game for a while just got sick of the bad management and bad lead designers, and left. It's likely they created bits and pieces of good foundation here and there, and then the rest was a desperate scrabble by a company with fewer talented people, that was basically running around like a chicken with its head cut off.