Warren,
The Cobb grill just sits wherever you put it - no mounting fittings provided. The bottom half is very cool, temp-wise, so I have just been setting it on the baitwell cover or in a chair, or between other things so it does not slide around. It has rubber feet, so has not slid at all for me.
I just finished cooking a chicken pizza on it thru a rain storm (aft top canvas up) and it did not slide at all thru all this wind and wave motion. I slid the cushion off the lid. The bottom is not hot so you can put it on just about anything including a plastic table cloth.
I have a grill, a microwave, small toaster oven, as well as the Wallas, but it is kind of hot in the cabin for a long time after cooking inside.
You can cook bread, rolls, or cornbread at the same time you are cooking pork chops, burgers, roast beef, chicken or whatever. It has a skillet, wok and griddle option which I have been using. Cooking breakfast in the cockpit has been nice in the mornings.
I am sure you could bolt the base to something or even use shock cords to hold the base still in rough water. Right now I'm in a rainstorm with 2-3 foot waves and it is just sitting there with no problem.
The worst thing is that you have to wait, after cooking, for the coals to burn down and cool off before stowing the stove, but you'd have to do that in about any kind of grill.
I've been cutting sweet corn cobs into about 1- 1n1/2 inch slices and tossing them into the "moat" with a bit of water and seasoning while cooking meat/rolls on top. I also toss frozen veggies into the moat or grill them alone on top.
It only uses 8-10 briquets and 1 starter stick per use, (unless smoking ribs for 5 hours, when you'd have to add several more at the 2 1/2 to 3 hour point. The water/beer/wine in the moat keeps the meats moist, but amazingly they still brown.
After cooling and wipe down with a paper towel, it easily fits into a provided heavy canvas case with shoulder straps and I've just been tossing it onto the forward bunk or into one of the cabinets.
I have liked and used the Magma pot/skillet system a lot and this kind of falls into that category, except you really don't need any extra pots or skillets, woks, etc, if you buy the accessory kit too.
Of course, a new buyer is always very excited...
John