What are u incubating??I use the one called "my closet" and the "basement "......if ur incubation room temperature doesnt fluctuate in a wide range then u can try use my method,if not I will try to find as many reviews on the rcom mx-r60 that u can read before making ur selection.
Mother earth has no precise temperature all the time,so an incubator will probably out done the nature unless there is a mechanical break down.