I am a big fan of these spinning drum composters. I purchased mine last spring but mine were a kit made out of weather resistant plastic with a metal frame. The primary reason I love this system is drums off the ground keep rodents to a minimum. In the desert, where I live, rodents, (pack rats, mice and snakes that follow them) will make a move to live wherever there is regular water so my bin (flat) compost was a disaster and I was pulling my hair out with the rodent population. Now it is very manageable.
The downside of spinning the compost is that the rolling action forms balls of compost. I dump the compost onto a plastic tarp and break these up before using the compost in the garden. It is a minor annoyance as compared to the alternative. If the drums smells slimy, I use my paper shredder to chop compostable brown paper bags for brown compost. I have my two drums in the sun 80% of the day and it works great. Avoid all day shade. Also, when you moisten the compost you can take the water that drips out the bottom and use as compost tea.
Lastly, you will want the system positioned in the sun during the colder months because if you can keep enough mass to generate the heat in the drum, it will work all winter instead of freezing into a lump.