Here are some points shared on Reddit.
- film is not shallow, it is instead best film of the franchise so far
- pacing is very quick
- no pop songs in the film
- a lot of cameos
- no time skips or flashbacks, easy film to follow
- Transformers we see the most are Orion Pax, D-16, B-127, Elita-1, Sentinel Prime (leader of Cybertron) and Airachnid
- film is unbelievable fun, amazing action packed and side-splittingly hilarious
- Rise of Orion to Optimus and fall of Megatron is handled as best as it could have been
- film is gorgeous
- voice acting is really good
- kinda between Lego movie and first Avengers movie, innocent on the surface but dar underneath
- a lot of G1 references
Also, a new poster was unveiled for this first screening, it shows Optimus and Megatron in their final forms in the film.