@Joanne246 Sounds like you have it pretty well covered. I'd just make it clear in your listing that the fridge is an under-the-counter type and has no freezer. The only issue I could see is the unavailability of ice. If you are close to grocery stores, so guests can shop frequently, they shouldn't require a freezer, but if you are more remote, they might find it helpful. I have seen those under-counter fridges with small freezer compartments- enough space to at least fit an ice cube tray and a couple of small items, so maybe research that.
As for microwaves, I've never used one myself, but I know many people are accustommed to using them extensively. Many people don't cook- they tend to buy pre-made food and heat up in microwave, so I think it would be a valuable addition.
If you find that not having a freezer is an issue with guests, you could rethink that at a future date as long as you leave space for that.