After buying my Genesis® II E-410 Gas Grill I knew I wanted a griddle due to it's size and always wanting to cook everything with gas especially during the warm months.  It is very well made, heavy which means it keeps a good temp after pulling food on it.  Due to the slight slant towards the grease trap I use spray olive oil and it works out well.  I have cooked chicken thighs, vegetables, and blackened fish with it  with very good results.  To clean I leave grill on for 10 minutes on high and use a scotch brite pad with water.  I wish it was maybe another 1/2" deeper to get it closer to the flame.  Pro tip if using in cold weather bring it in the house to warm it up.  Overall love it.