I wish they would actually focus on the Transfomers and less on the humans involved with the Transfomers. The last two movies were really "#MURICA, featuring the Transformers".
That said, enjoyed the first movie (the first time Prime appears, transforms and introduces himself... DEM FEELS), hated the 2nd movie, and accepted the third as "a decent action movie also ft. the Transformers."
My only gripe is that humanity can fight against the Decepticons and win, thereby negating the need to even involve the Autobots.