Used the prototype a couple of times during vacation, great grilling experience. Getting the grill ready with a nice heat, which is normally always a bit of a hassle worked so easily every single time. Apparently a lot of thoughts have gone into the design of the product. Must have been made by people who love grilling :)
I've attended a grill session once and was impressed. As a father I think one of the more overlooked points of this grill is its focus on safety, i.e. you can't burn yourself on the outer shell. So while waiting for the embers to get ready (which really just took 20 mins) you can quickly grab something from inside and don't have to worry about the magnetizing effect this thing has on kids...
had the chance to test it for one week - was amazing.
Had a prototype in my house for one week - loved it!