I have a Panasonic Combination microwave and convection oven on my boat.  I bought it and eliminated the traditional combo cooktop and oven and had only a cooktop installed.  THe Combo Panasonic unit works great for baking and roasting as well as the traditional MW tasks.  Eliminating the traditional oven made space for a nice drawer dishwasher which is very convenient and effective.   Gary Hagstrom Iron River, Wisconsin