I'm about 3 hours in and it already seems like a wasted opportunity to me. I enjoy my share of cinematic games, I think it's even totally justifiable to have a 10 hour game only consisting of QTE's and walking (aka Beyond: Two Souls), if the story and characters are solid. But RAD made such a weird and inconsistent mix of TPS gameplay and cinematic adventure, that it just isn't really that fun to play.
When the action gets going, it's absolutely amazing. The guns feel great and the AI is pretty serviceable. Connecting that with all the "slow walking exploration" sequences and short, ham-fisted cutscenes of opening doors doesn't work that great. The actions bits are usually too short and the pacing takes a blow from that.
I still kinda like it (the setting and characters are great, combat's fun), but I can already see what the problem was for most reviewers. Hopefully it gets better with progress. So far it's not quite my tempo.