It's swell. But if you have very high expectations, lower them a bit and you'll be happier.
The show is lighter on jaw-dropping acrobatics than Cirque is famed for. And it doesn't have much of a focus--most of the time there's so much happening on stage that it's not clear what to focus on. In the end it probably doesn't matter--the show leans heavy on the charm of the music and the Beatles' chatter.
A friend of mine loved it because it allowed her to pretend she was at a Beatles concert. I liked how they mixed all the songs and tidbits from various outtakes into one 90-minute flow.
There are no bad seats, probably, but there are better seats than others. My guess is the closer you are to the middle, or front-middle, the better. If you're too close to the stage, you may be too close to get the effect of all the synchronization between the cast. If you're too far, it's fine, but you may lose out on some detail. The middle seems to be a sweet spot.