Luc Besson has made some amazing films and some pretty bad ones. It is a mixed bag. To me, this movie exemplifies that. It had some great actors giving interesting performances and some nice visual touches but while the sort starts out with promise the undeniable dumbness of the main conceit of the film catches up to it by the end and it left me feeling... MEH. The main character is hard yo feel anything for and the whole using only 10% of your brain thing one of those stupid ideas that has never.... never... had any validity to it but somehow keeps itself alive in the mind of popular culture. It would have worked better as a super hero original story where it could have dropped all pretence of trying to transit anything "deep" to the audiences watching it.
It moves along at a pace that I think works and the effects are very well done but without a sympathetic lead and a ridiculous premise it takes far too seriously, it just falls flat by the end. So not boring but not something to go out of your way to watch and if you do, expect very little from it and you'll be fine.