 The WIFI connection is not very good particularly if you are on the higher floor I was on the 5th floor I had difficulty with WIFI connections to my laptop While having a room on a higher floor sounds good it is is better to be on a lower floor and stay very close to the MODEM and Server to ensure good WIFI connections The only way I could use my laptop was to sit in the bar area The other point is when making a reservation through Booking com it is not made clear or obvious on the Booking com site that not all the rooms at Wandl come with air conditioning I only found this out at check in I then requested to change to rooms with air conditioning for which we had to pay extra I accepted the additional cost but I think Booking com needs to make clear that not ALL rooms have air conditioning 
 Everything was fine At check in the person handling the check in was helpful and organised the change of rooms so that I and my colleagues could have rooms with air conditioning for extra cost of course All the staff at Wandl are friendly and helpful 