I stayed here for one night, midweek, for business. It's a big hotel, and it had almost no guests (admittedly, mid December is not exactly peak season!). Room plus full breakfast cost a paltry €35, which is excellent value, particularly considering that the room was huge - and warm - and the breakfast was notable in both quantity and quality. It was a buffet, and there was enough to feed an army. The hot counter had two different types of eggs, hot tomatoes, mushrooms, bacon, sausages and saucer-sized black and white puddings. All staff from reception to restaurant were very friendly and welcoming.
Definitely worth a visit; if you were on holiday, you could base yourself and explore Donegal from there.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC