I can't recommend La Nouba enough! It's an amazing show.
I've sat in a variety of seats from six rows away to the upper seats. I found they were all good, but by far the best was sitting in the front row ofSection 204. It's central, you can see everything without craning to look behind you and the parade of characters passes right in front of you.
I found that it was best to phone and ask to be put through to the venue, the first folks you talk to don't have access to all available seating, they just get the "next best" seats assigned by the computer in whatever class of seating you request [translated: filling each section in order, front to back, left to right]. If you want specific seats, ask for them. By asking I've sat in the same seats for three of the five times I've seen the show.