I have stayed at Boutique Hotel on two occasions. It's a very nice, well-maintained, clean hotel.
Staff are very helpful and the reception is 24/7 so it's convenient if you are arriving late to Wroclaw. For example, there is a bus from the airport which stops almost beside the hotel. Bus number 129, Kwiska is the name of the stop for Boutique Hotel. There is number of trams and buses 30 seconds walk away from the hotel, which will bring you to any part of the city, but slightly off the road which makes it quiet. Importantly, the bus to and from the airport is close-by and the journey takes app. 30 minutes.
Rooms are really spacious and comfy, there is a kettle, coffee and tea in the room. Big bathroom and great shower with good water pressure.