We used Mears for our recent trip (8/8-8/16). Arrival was fine, we waited for a little while on the bus but it was air conditioned so we were good. The Mears area was empty when we checked in- maybe one or two other families (midday on a Tuesday).
Leaving AoA Mears unfortunately didn't seem to account for traffic + security. Our pickup was on time at the 4:55 scheduled time for an 8:15 flight, which seemed like plenty of time to me but I did wonder about the traffic variable being a weekday during rush hour. We went to Pop next where there were 25+ people waiting. Bad news is it took quite awhile for one person to check everyone in and stow the luggage. Good news is we couldn't fit anyone else on the bus so off to the airport we went. We hit traffic and then had to go by Terminal C for drop offs, then got dropped at B and had to walk all the way over to A. Went straight to check our bags (line was 5 minutes max), quickly used the bathroom and then spent over an hour in the security line, getting out of it after 7:30. Had our flight been on time, we would have barely had time to use the bathroom before boarding, forget about grabbing any food. I know plenty of people think 3 hours before a flight is way too early but in this case, we had almost 3 1/2 hours and it would have been cut uncomfortably close had our flight not been delayed almost an hour...