We enjoyed our stay in Hotel Rila Borovets. The room, and the bathroom especially, were on the small side. That said, it’s right by the slopes and you can pretty much ski right into the hotel. We took the half board option, which was very convenient. There’s a wide variety of options, though hard to get the waiters to serve you drinks.
The hotel has the reputation as the best one in Borovets. We enjoyed our stay, and would likely stay there again if we return to the resort