I really liked it. Probably my favourite SW film after ESB, RO and ANH. The fan service actually felt like nerd trivia, with hints at the wider universe - not lingering shots on cantina aliens or droids - well except for the big red stinker.
I’d probably trim the Maul bit so he is just a cowled figure with robotic legs, or at most reveal a face - but the lightsabre seemed a little unecessary. I found him a bit jarring and it took me out the film.
As with an ideal Rogue One edit that has a crawl, and has a single sustained time period (ie no time jumping or flashbacks) I’d like to figure out how a space opening could work. I assume you could probably open with Star Destroyers over that planet where Han is a soldier. Would the film really make much sense without the Corellia scenes though? It would definilty lose alot of the character connection.