My Opinion: All things being equal, an all wood humidor is going to be easier. It has the advantage of "breathing" as well as being slower to reflect changes in RH (from opening the door, etc.). Also, in my experience once you have established the desired environment in terms of temp and RH it is easier to maintain at that level. With glass, plexiglass, plastic, etc., the environment changes dramatically very quickly and you have to re-establish optimal conditions all over again. My words haven't conveyed my thoughts as well as I would like, but you get my general drift...........