I waited to finish the game before I comment. I have to admit that the end is not worthy of this fabulous trilogy, especially the last hour (shabby and incoherent). Worse, the replayability is virtually absent in contrast to previous games because the choices we make ultimately have no impact (including choices made in ME1 and ME2) which undermines the whole point of the game. But that's not all: the dialogue with the members of the team are fewer, humor is less present, the transition phase with ME2 is awkward, freedom of action is even more limited than in ME2 ( almost no choice in the order of tasks, very few places to explore freely). Bioware has on top of that had the nerve to propose a DLC right out ... That's a lot ...
Besides that, there are the elements that make the success of the franchise: often very inspired decor, simple gameplay but successful, impeccable soundtrack, sumptuous cinematics. We can also rejoice at the vast selection of weapons and the possibility of improving them. Then ME3 reserves still some very good times.
Remains that despite these qualities is deception prevails. He will probably have to again hand to the wallet for more, but it will clearly without me.