Quality of materials, design and construction of this grill are excellent and it's a bargain. Much greater bang for the buck when compared to the T brand and others. The app works fine, but this is an area that could improve. Operationally, it works ok but tends to be more a marketing tool than a robust app for the grill. For example, there is a dedicated shopping section that does not belong here, at least not so prominently. The Recipes section holds promise, but is a joke. They randomly apply the the myriad of products they offer and none were specific to the 790. Every recipe should be specific to the grill with a settings option that sets up the grill to cook that specific recipe. But, it does nothing of the sort. It's a 5 star grill with a 3 star app.