For me and the research I did for why I picked an upright freezer vs. fridge:
0. Johnson controls digital unit to keep a constant and accurate temp. Less duty cycle on the heavier freezer compressor means a longer life IMHO.
1. Upright freezer has more usable space - I won't use the freezer space in a dual freezer/fridge as it doesn't cool the same rate as the rest of the unit plus the coils are around the freezer boxes (don't want that close to the cheese).
2. The residential "all refrigerator" models are rare and very expensive for the sq. ft. of available space vs. upright freezer.
3. My freezer has forced air with movable shelves - not fixed/immovable cooling coil shelves that can cause humidity to drip on your cheese I. Having the built in fan also helps with occasional air movement so I don't have to buy and hack in another fan.
4. The plus is that I can use the doors shelves to hold my more expensive bottles of wine. I might as well get them both accustomed to being in a dark place together.
5. More likely to hold a higher resale value than a fridge - when I graduate to a real walk-in cheese cave on a farmstead w/cheeserie somewhere (OK - that was my dream sequence kicking in).
I'm in Colorado - land of no humidity - so I do keep a water bowl with a towel in it near one of the air ports. It keeps it reasonably around 80 to 90% as long as I don't keep opening the door. Cheeses that need more are kept in their respective tub with more water. I tend to vacuum pack and wax as much as possible. I could put a few more bowls of water in there but I'm not needing that much ATM. I do keep a remote digital thermometer/hygrometer in there to watch elsewhere.
Being an engineer I've over-thought this way too much so you need to do what works for you!