I've had multiple stays at this hotel, and this it was again a pleasant experience. Even when arriving early, there was no problem getting a room without paying extra, and the rooms are comfortable and well-equipped. Wifi and a coffee make are available and working.
The breakfast is quite good, though some more hot options could be available and the staff could do with a smile once in a while. A slight annoyance is that the cleaners always turn off the air conditioning during the day, but this corrects itself rather quickly when coming back.
In all, a recommendable hotel, also with some bars by the technical university and a beer garden nearby.