This is a great airport! We flew in to terminal B from Nashville on our way to Iceland (terminal E). We had a 5 hour layover and were considering grabbing a lobster roll outside the airport somewhere but realized the airline we were flying to Iceland does not participate in TSA Precheck and we didn't want the hassle coming back in so we stayed and ate at Legal Seafood (there's one in each terminal). It was delicious albeit expensive. The walk down to terminal E from B took a while (about 24 minutes) but we passed lots of super comfortable seats and private sitting areas. I was amazed at all the comfy seating everywhere. Even the standard seating was great because there were charging ports that worked (ahemm...Nashville). Lots of shopping and restaurant options. Also noticed 2 playgrounds for young children. Arrival from Iceland was delayed and we entered the airport at just after 9.30pm. We were sitting in seat 9 on the plane and used Mobile Passport to go through customs. We were through and near the exit of the airport booking a hotel for the evening within 20 minutes. I cannot remember if we would have had to go back through security had we made our connecting domestic flight but I believe so. We were going to try to grab an earlier flight on Southwest (leaving 45 minutes after scheduled landing) if we were about to make it time (as it turns out, we didn't even make our planned flight) but I think it would have been super tight, especially considering the gate closes 10 minutes prior and we'd have had to check to see if there was room at the gate (we did not check luggage). Anyway, the only room for improvement I can see is putting some of those Ride Share sign down in arrivals. It's great to see them in departures but why are they there?? Fyi, you have to go upstairs and follow the purple signage (it's a long journey). There is also a Hilton hotel near Ride Share pickup area but I had already booked and it was nonrefundable. Looked like it would have been $300 for 3 hours of sleep, not worth it. Lol Although maybe I'd have gotten 4 hours in the time it took us to get to ours. We arrived at 3.38am the next morning. TSA Precheck didn't even open until 3.45am so we waited until 3.48am when they finally opened (our flight was at 5.05am). We were through security at 3.53am, after they checked out my bread to make sure I wasn't smuggling anything in. Lol