I flew JetBlue from MCO today to BOS. The new kiosks and bag drop worked very well. Probably took 30 seconds to tag my bag and maybe a minute to drop it. Precheck line was about 15 deep, but moved very quickly. Nothing unexpected with screening or TSA in general. Only one tram did take some time. Took less then 30 minutes from curbside to gate.
I fly 3-4 times a month through MCO on JetBlue and the last few times with the new ticket counter area really help a lot!