I've used the folding dolly from home depot. It's not really a solution that takes you all the way into the water as this system proposes it can do. You either have to leave the dolly on the shore and depend on the honestly of your fellow man that it will be there when you return from your dive. Or....run back to your vehicle with the dolly....and worse....leave your gear on the beach until you make this round trip.
I dive in San Diego, CA and I do wonder if this thing can get through the thick sand at La Jolla Shores. I also wonder if the wheel are secure enough with just that bungee cord. I'd prefer that they some how snapped into place. I wonder how much replacement wheels cost.
I also think a lot of San Diego divers would scoff at this just because.
Divers here have a bit of "pride" in their ability to handle tough conditions like relatively cold water, murky conditions. San Diego has some very strong rip currents at some of the rockier entries. Etc. Humping your gear on your back all the way across the beach is how it's done....aaah aahh oooh ooh AHH !
That being said....I'm thinking I might giving this a try. I have managed to snap the ACL ligaments in both my knees. Once from skiing, once from standing up with scuba gear on my back...and again from standing up with scuba gear (tearing out my ACL replacement)!
I had to give up beach dives. Obviously my knees can no longer take it. I know a lot of other guys my age who quietly admit the same. This product might be my salvation.
I just wish two things: 1) that price would come down, 2) I could find a good review from a southern California diver who actually tried it out on a beach dive around here.