I don’t have one, but I’ll tell you why some people hate them. If you want to use it for garden soil, you have to stop adding to it at some point and just tumble it. So it almost requires that you have two of them, because what will you do with your other compost while you wait for what is added to one of them to break down.
Otherwise you can’t separate out the old compost that is ready to use, from the new compost that just got added last week – meaning you are putting raw manure or half a tomato into your garden.
I have the kind that you add at the top and take out from the bottom. You can’t tumble it, so it can take a while if you fill it with new compost. But, on the other hand, once you have usable compost at the bottom, you can continue to add compost to the bin.
Pros and cons of both.