we recently spent a night at the Jazz, prior to an early morning flight. We had a family room (with a camping bed for our son). It cost 202 Eur - in our view excessive for a simple 3 star place without a reception (you get in with an access code). Wifi also did not work (the network was on and off visible, but we were unable to connect).
Worst part, however, is that on the booking portal description (e.g. hotels.com, where we booked) it listed "Airport shuttle, Airport drop-off service" under main amenities. To me this means that they provide a shuttle, as many airport hotels do. At the Jazz they leave you a phone number to call a taxi, which costs 22 Euro extra - utterly annoying at that price level.
The room was overall ok and clean, though the old wooden window frames were drafty, and signs of wear and tear are frequent.
Overall a place to avoid.