Now that the E-175 and E-170 fleets are fully converted to a two-cabin configuration and F service has started on these fleets, I figured we could start a thread with observations/experiences from Express First. I had my first experience yesterday on PIT-CLT and CLT-GSO. I wanted to try both the single seat and the double seat, so I went with 3A on the first leg and 3F the second. In short, I love the fact that these express planes now have F...this is a HUGE improvement in my opinion. Some random observations: Maybe I was just tired, but I felt like the seats had more recline than the mainline F seats. I really felt like I was laying back when I put the seat all the way back, which was great. It appears that every seat has an adjustable (moves up and down) headrest, and well as the "wing flaps" that fold in/out. This always makes sleeping so much easier for me, so this was great to see since it's hit or miss as to whether or not you'll have the headrests on the mainline fleet. It was great to have the extended overhead bins on one side of the F cabin. I'm used to my rollaboard barely fitting on that plane when it's put in sideways, but it had no issues at all fitting wheels-first in the overhead. And with only 8 seats in F, it seemed like there was adequate space for first class luggage. I think it's apparent the flight attendants recently went through training on F service, because they literally jumped to give PDBs. I was offered a PDB within 20 seconds of taking my seat on both flights, which was great...it almost seemed like they were trained that it's a requirement to provide one (when I feel like the mainline attitude is "maybe if we can/feel like it), which is fine with me! All in all, I think a big added value to being an elite on US, and I was pleased with all aspects of the experience!