A bit flat
I was expecting a generic action movie (and I guess that's what I got) but whilst I admire the low-key approach (i.e, not drenched in non-stop CGI) the movie itself felt rather flat (Performances, action and especially the dialogue)
It reminded me of (the much superior) FROM PARIS WITH LOVE (minus the set-pieces and enthusiasm)
"If you're lying.....I'll be back"