Yes I tried one of these and did not like it. It did not get hot enough as it is so high and stuff kept falling in the front trough. I sold mine. I like either a cast iron or high carbon steel one that sits on the grates.
I have the exact same one. Used it twice and didn't care for it. It cooked okay and thought it was hard to clean. I bought the Weber one for my Genesis and like it a lot more.