Cirque du Soleil Boston

Depends on the show Most are an hour and a half with a 30 min intermission

You can get in 45 minutes before this show . Preshow starts 15 - 10 minutes before the show

Yes, depending on person you might want to bring a sweater

It is also a 5 min walk from the T.

You can park on-site but unless you rush out faster than everyone else, you'll get stuck in bad traffic trying to leave. When we left, there were taxis lined up by the parking lot -- probably the fastest way out of there. Lyft has a pickup/dropoff area too, but it's a bit harder for them to come in and leave while all the other traffic is flooding out. Good luck and have fun!

Two hours not including a 15 minute intermission. They began promptly and stayed on time, so estimate for 2:15 time there.