We have a number of Memmert incubators, and they perform well during temperature and humidity calibrations. One problem is the quality of the door handles. The doors do not close together in two door cabinet models easily, and with a number of different personnel using them, they have broken in the past and required new handles installed. Also, the touch screens are pretty sleek, but not super user-friendly, and a new user will often have to fiddle around with the controls until they find what they are looking for.