My first time 0n the CRJ550 today, STL-ORD. I was very impressed by the interior! More legroom in F than on a 737! A cheery FA (GoJet) provided excellent service, including PDB, in-flght beverage and snack basket to us in F, then did a drink service in Y all in a 50-minute flight.
The connecting ORD-BOS on a 737-700 had a great FA too, with a choice of PDB. I pre-ordered the burger, and it was fine, though my partner had the curry chicken and wasn't impressed. Drink refills were plentiful, though the WiFi was wonky.
All-in-all, a fine TG trip.