I've had one for two years....like the extra space but very hard to open a
Westy pop-top with one on the roof....even empty.  Must (at least)empty it
to open the top. Also hard to get into....need a ladder or step stool to
reach.  And its always there and full of gear and the extra weight when not
traveling...i.e. gas mileage penalty.

I've been considering a trailer hitch mounted box instead...which can be
removed and stowed in the garage except when needed for trips.

Anyone have one of these type???....Wondering how it effects the handling
of the van with the extra weight hanging off the back.

Warren C.