Have only used this once but we barely needed to use oil, and it was very easy to clean. I do find it odd that grease tray is so much of an angle ( tilts towards the front, so if there is a lot of grease it would overflow before completely filling up.
I have struggled to find a good grill for family breakfasts. This one is great. Extra large size, even cooking,easy to clean, no excess bits on the handles or otherwise that are hard to clean over time. It is simply the BEST.