Neither. For a whole lot less you can get a much better grill at wall mart. The difficulty is configuring a proper mounting.
I have previously posted the problem of magnas overheating. For what they cost you should be able to adjust the heat down. Do not expect Weber Grill performance from them.
Others have also found that the burner control is not adequate. If I can find my camera I have a great picture my magma engrossed in flames cooking two burgers on the lowest setting.
Even a cheapo grill replaced every few years would be a good choice.
you CAN adjust the heat down on a magma grill.... they supply a regulator with the grill but it may not be suited for your area or cooking style.
but the good news is, due to them NOT knowing where in the world the grill is going to be operated, in the arctic or in the tropics, or, if you like to cook on high or if you are a low heat cook, they make three differently adjusted regulators, so you have 2 other options to choose from if you dont like the heat output of what came with the grill.
but also keep in mind that no matter if you bought a 1000 dollar boat grill or a 19.95 budget grill, any regulator CAN be faulty....
so its not fair to blame an excellent quality grill for something the regulator may be causing...
one thing about the newer magma kettle II grills is that even in 25mph wind, the grill will stay lit and not blow out like the other types I have used. ....a boat grill that wont stay lit in a bit of wind, is worse than one that flares up....
a good freind of mine has one of the stainless walmart grills that he has been using for about 5 years, but we did have to modify it to keep it lit in a breeze, and its not even close to being as rugged as the magma.... but the food cooked on them tastes just as good..... and its no secret that he would like to replace it with a kettle II.