For what it is worth, I used a REI quarterdome T2 plus cycling across Africa with TDA. The zippers stopped working well after a sandstorm in Sudan - but otherwise it did the job. I retired that tent after that trip.

I bought a new REI quarterdome T2 plus for my current ride across the Americas and it is still doing fine.

The "plus" aspect was just slightly larger dimensions and may have been discontinued. What I like about the tents has been (1) two doors (2) reasonable head room (3) free standing (4) not extremely heavy.