We had a comfortable stay in the Airstream. The wifi worked great for us (we brought a tablet and it had no problems connecting/streaming), as did the AC/heater: being a typical Texas "winter", it was chilly at night but warmed up quite a bit during the day, and both the heater and AC function worked great. The bed was firm but comfortable. The bathroom is pretty small, as to be expected---it was a little tricky using the shower but it worked out. The location is good with plenty of restaurants and grocery stores only a few minutes up the street.
Road noise from the street was greater than expected, but there is a nice Bose speaker in the Airstream through which you can run sleep sounds/white noise to filter it out.