I had one of the Lifetime/Ozark Trail grilling tables from Wally World also. It's standard lifetime mechanism and you can even swap the table tops around (so I now have the grilling table legs with the paper towel and tool holders mounted to my all-plastic table tops)
I found the spacing on the mesh was a little wide, so my only choice was to sit stoves and grills directly on the mesh, rather than on whatever leg system they used. This didn't always work well with propane bottles, etc. since they assumed you'd use the legs to get the appropriate angle so you were only drawing gas from the bottle. (I always ended up with the bottle hanging off the side of the table)
My next attempt was to cover the mesh top with a sheet of 24g galvanized sheet. This worked great, and I could even put coals right on it and use it as a Dutch Oven table, but it made the thing REALLY heavy (that table already a bit heavier than the all-plastic variant).
My last project was to turn the table into a "stand" table for my chuckbox. I'd previously had my chuckbox mounted to a set of legs from a folding sawhorse, but I found that deploying the legs while also dealing with the heavy chuckbox was a pain. Instead, I've made a "mini-table" by significantly narrowing the frame and using a 1/2" birch-ply top. It folds down to 12" x 20" x 3" and is much lighter and easier to setup than the old sawhorse leg system. The folding and latching all works the same, and I only had to cut and re-weld 4 tubes.