The red HF cart is nice for the money, especially after putting swivel casters at all four corners. It holds tools for 90% of my common jobs. Mine is outfitted with it's own set of basic tools so I don't have to transfer from the big box.
The 3rd door isn't really much more money. We have an 18 ft wide door plus a 9 ft wide door. The single bay is great for easy access to golf cart, bikes, etc and we use it more often than the double door. 9 wide allows car access far easier than 8 wide.