Terrible is stretching it I think. It's flawed but enjoyable and more cogent than any of the sequel movies. Finn and Poe are barely characters. Obi Wan, Anakin, Padme as a trio run laps on Rey, Finn, and Poe. Obi Wan's detective story contrasted with Anakin falling to the dark side and killing Tuskan's is good, entertaining shit.
Main criticism is how lazy the filmmaking is. Two camera set up very scene.
Note that because I don't think it's terrible doesn't mean I think it's great or even good. It's just fair, average, and enjoyable.