Bottles very slightly larger diameter than the thinnest table wine bottle only fit in shelves 1 & 4.  I’m not talking magnums or burgundy bottles, but anything thicker/wider that the thinnest bottle.  A shame, nice looking unit that could be both functional and a display piece.  Would only take three times 1/8” or three times 1/4” to make shelves 2,3, & 5 very functional.  Only keeping this unit because it appears to do a nice job regulating temperature.  Can’t believe only one prior reviewer mentions this design flaw (wrongly thought he was misguided).  I use freestanding and if not super careful shelf two gets caught on the top/first shelf the whole unit can fall on you.  Regulates temp fine and looks great closed, but GE could’ve executed this much better for the average wine bottle.