Justice League isn't near as awful as the critics made it out to be. It is hard, obviously, coming off Wonder Woman. But for a simple, enjoyable superhero movie, it is worth the time to watch.
Many of the critics are complaining the storyline is contrived.. well duh.. it is a DC superhero movie with the big guns. Plus, everyone complained Batman versus Superman was too over-written.
The CGI at the big battle was somewhat hokey as well as many of the one-liners- but come on, you aren't going to Justice League for intellectual ponderings.