I can't leave it at that. I have to add some details.
Both the empire and the rebels repeatedly made tactical decisions so stupid a five-year old would know better. The opening battle involved sending unprotected bombers against a ship with anti-bomber defences and keeping the enemy commander talking on the phone to delay his response. That works in a Mel Brooks movie, not in Star Wars.
They killed a fan-favourite character off-screen. What, was the puppet too old to reprise its role?
The empire's main guy decided to chase the rebels down instead of destroying them immediately. For fun, I guess.
Phasma's a badass. Except that she capitulates at the first sign of personal danger.
All Holdo had to say was "yes, there's a plan. Not telling you what because of operational secrecy". Instead she expected Poe to blindly follow orders when he'd already shown he couldn't do that.
"Oh no, the sacred texts!" ...that you attempted to burn a moment ago.
If a creature that size existed, it wouldn't be made of ordinary flesh. Its bones would have to be something special just to hold it up, and its tendons would need to be extraordinarily tough to keep the muscles from just sliding off in a heap.