It certainly could be called 'luxury boutique' due to its size and no kids. However, when we arrived to check-in it was a little weird to find neither a reception nor concierge desk. We worked out we had to knock on the unmarked office door to get to the staff and then wait by the door to get checked-in.
The staff were pleasant enough, especially the bar/catering staff, but it's odd for a hotel to keep customer service staff behind a closed door and put me off having to knock and ask them for everything from recommendations/advice and wanting to use the facilities (e.g. the sauna can only be switched on by hotel staff, key to bike store etc).
Although the slightly dodgy AC and shower head didn't bother me, I can only assume the property is in a state of transition between new and old as the photos of the restaurant and interior on this and the hotel's website are out of date. So whilst the new dining area is fine, the corridors and rooms (at least the room we had) in comparison were somewhat dark and out-dated.
The pool didn't seem heated to me but I really liked the pool area. Otherwise, the hotel was clean, well located and breakfast was good. If it stayed like this, I'm not sure I'd go back...