I have been there in the past year, and I have nothing bad to say about it.
Located near the city centre, it offers a good parking facilitie, and a great access to the main roads.
Service is ok, and the rooms are pretty clean. Breakfast is excellent, and if you don't want to spend big money at dinner time, a modern shopping centre is as far as 3/4 minutes by car. I’ve been in other 3 star hotels far worse, so it presents a good price/quality relationship. It was a swimming pool with warm water, which is open until 19.00 (great in winter time ).
The best way to do a reservation is by internet, or trough a travel agency (in the Portuguese case), because prices became a lot cheaper.
I’m going back there this year, so I recommend everyone who comes to Covilhã and doesn’t want to spend a lot of money, to go there.
