As I read previously, it wasnt 100% smokeless even with filling bottom tray with water as the items cooking released fluids or with basting any of them, uopn making contact with the hot grill, it smoked a bit. Cleaning would be ideal in dish washer but not everyone owns one so be prepared to clean in betwen grills for a while if you dont own one. That was a major PITA. The heat sensor appeared to turn on until it reached the desired temp, then turn off, but kept turning back on to maintain the heat. I wasnt able to determine how much threashold there was from time it reached, until the duration it was off, then back on. Not sure how much the temp fluxuated between these steps. I did feel however that I had to cranck it to a higher number to get the items to grill as I wanted to, not as the book says that it came with. Overall, its a nice product to have on rainy days and when you want to get the desired grill marks. I personally think I would of prefered for the grill to be closed and not open, with deep enough 'fins' to allow grease onto a run-off tray or something like that instead of dripping onto a bottom tray with water that you then have to wash too.