We use this van in our air conditioning business. It carries about 2,000 pounds of racks, equipment and tools daily and is a workhorse. After almost 50,000 miles it has had no major problems and runs great. The brakes are huge 4 wheel discs and the pads are still original. It's a perfect fit for our business.
Size, the extended wheelbase is large enough for tools, parts, and a complete A/C system. You don't even know that you are carrying the extra weight. The engine has tons of power. Brakes are excellent. Towing is no problem.
The sliding side door may be a better option for us. We average about 12 Mpg which is mainly city driving. The diesel engine which is now available would improve fuel economy although for it's size and weight I don't think 12 mpg is too bad.