Ok...some random thoughts.
I didn't go in all prepped to hate this movie.
I found the movie bland for the most part.
Our characters weren't all that fleshed out. Wiig's was probably the most so...although McKinnon's was probably the most memorable as she at times whips out experimentation and weapons gleefully indifferent to the dangers to those around her and herself.
She was funny and she steals the movie.
There was a group dynamic that was obvious in the original movie that is missing in this current incarnation. Half the time when there were together it seemed like squeaky cogs meshing...and needing oil.
The bad guy in this movie is a cliche. (a pity. He would have made a nice counterpart to Holtzmann)
Now, the original we had Janine; a smart wisecracking empowered woman.
Here, we have Kevin; an objectified stupid blonde man. (Really? Wearing glasses without lenses in them because they keep clean that way? That's a cartoon character.)
There are no smart guys here (beyond the bad guy) and there are no strong guys here. If this is a movie that is supposed to show empowered women it shouldn't do so with such examples that we see here among the men.
I felt this movie was uninspired, clumsy and more often than not, just dumb.
This movie will be compared to the original and fall far short of it in every way.