That was the problem.
The RPG side was mediocre, the TPS side was mediocre.
It was just a mediocre game all around.
The game was decent in the fact that it actually focused on the characters. Dare I say it didn't focus enough which is why the characters in TES itself are pathetic for me.
Mass Effect 2 wasn't any less of an RPG or shooter than Mass Effect. It wasn't good at those things anyways. All it did was ditch inventory instead of refining it as BGS did for Skyrim.
So pros and cons.
Deus Ex svcked as a shooter and at times as an RPG. System Shock 2 at its shooting elements too.
Yet Deus Ex and System Shock 2 are legendary and powerful games.
ME2 isn't in that category but has its aces.
It wasn't mediocre. It was great. But not excellent.
Again a huge setback for it is either no outside small closed in HUB exploration ala Mass Effect 2 or terrible barely existent as in Mass Effect 1.
To top it off, it pales in comparison to the linear but open structure of Deus Ex and Deus Ex: Human revolution and its HUBs are devoid of good quests or good things to find. Very closed in.