Yeah, I have one and love it. I enjoy working outside anytime the weather is nice enough to allow it.
I call this my "Black Widow Workbench" (hopefully the reason for my name is obvious to you

) The set of legs closest to the building is buried in the ground. The other end is just setting on the grass so it can be taken down easy for mowing (although, I have yet to take it down). It is plenty stable that way for the stuff I do out there (wood cutting with circular and saber saw, metal cutting with the abrasive saw, grinding, etc. - all the stuff that generates a lot of dust)
Its that shape only because it was made from the scraps generated when the main rafter gussets were cut out of 4x8 sheets for my place.
But after using it for quite a few years now, I don't think I would change it's shape. It lends itself well to ripping sheet of plywood without slicing through the table and using the jigsaw for cutouts as shown here. The V-shaped side edges also work well for cutting notches or drilling holes near the edge of the workpiece while still supporting it firmly.
I'm on my second set of plywood vees because they don't stand up to the weather very well and I have one more set of gusset scraps to use before I need to buy something new. I think when that time comes, I'm going to build a very similar shaped workbench out of stainless and it will be located in the same spot - under my Hickory tree.