Donegal is a gorgeous spot and the cottage is close to lots of amazing scenery and places to visit.
The cottage is a traditional Irish cottage and very picturesque on the outside.
There is central heating, electric shower etc but if you like any creature comforts I'd definitely recommend bringing your own, as well as matches for the gas oven and hob - save yourself going back out to the shop after a long drive 😊
If you have any mobility issues be mindful the floor is uneven, which isn't something I'd really considered fully and I struggled with that so if you're the same it's worth noting.
Would definitely go back to this area of Donegal, the scenery is unreal and the locals so friendly!