Finally Watched This - Here's What's Wrong With It
1. Sophie Turner.
2. Apocalypse's Horsemen. Apart from Magneto all absolutely crap.
3. Apocalypse looking like Thanos / Generic MCU boss villain.
4. Too much big scale crappy CGI - looked like Black Adam.
5. The weird chuckling from Charles re wiping Moira's memory. Just seemed out of place...
Other than that, it wasn't so bad as I'd been led to believe. The Charles and Eric rivalry / brothers storyline was nicely continued. The final team up to defeat Apocalypse was pretty well done.
If they'd just managed to remove three or four of those point, this would have been more or less up there with the previous two films.