Metacritic user score is a nice idea but completely unrealistic because of just how people are. Major problems are people want to feel their score is having an effect so are way to keen to deliver a 0-1 or 9+ score, people carry grudges from previous games (Bioware and DA2 for example), they get attacked because people think it's amusing to see a AAA game get a really low score and mostly people just don't take the thing seriously.
100+ reviews out of what 2,000,000 people that have bought the game is a terrible sample size, basically full of the people who get most fueled by hype or hate, even 1000 would be pretty worthless. We'll know if the game is good by if it retains most of it's subs and builds its population upwards, or if people bail by the bucketload.