Ordered 10.27, shipped 10.31, delivered 11.2. Not bad! I live in the mountains west of Denver. Just installed and mounted two bikes no problems (straps seem a bit complicated, but secure). Quality seems great.
Cost. The current quad motors are sourced from Bosch and (presumably) much more expensive than their in-house designed motors (Enduro) which are used in the dual.
My Max R1T moved from Oct-Dec to Jan-Feb '24. Found a Large-Quad Launch Edition for a great price on the Shop, so pulled the trigger. $11.5k cheaper than the similar Max config. Didn't want to lose the (likely) legacy federal tax credit by taking delivery in '24. I'll take more road trip...