We've stayed at Movenpick Basel previously and had a wonderful time - the hotel is very comfortable, clean and the service was great. Much was the same on our second visit, and we'd certainly stay if we were to pass through Basel again, but one thing spoiled the experience this time around. The room (on the 6th floor) had a very distinct smell of drains. Even with the bathroom door closed, you could still smell it in bed. We reported this to reception in the evening before we went out for dinner and on our return, the housekeeping staff had been in and sprayed air freshener. This was appreciated, but obviously didn't deal with the underlying issue. When we checked out in the morning and suggested that the maintenance staff might want to take a closer look, we were met with disinterest to the level of rudeness - it was only when my husband explained the issue further in German did the desk staff take a note of the room number. It's a really unpleasant thing to have to experience when you've paid a decent amount of money to stay in a nice hotel - so I'd suggest that the hotel at least give the impression that they are going to look into the issue and also be a bit more sympathetic and apologetic.