We did not have much of a choice in selection for the dimensions, long but short in height.  Fortunately, this one worked out well.  It arrived quickly and it was very well packaged with the order split in two packages, one for the 40 inch cabinet and the other for the 20 inch cabinet. It was nice to receive intact and undamaged glass-abundant cabinets. It probably took more time to remove the units from the robust packaging that installing them!

Pros: good quality and easy installation
Cons: none