I've stayed several times at the Mercure Secession, because I love visiting the Japanese stores and restaurants in the Naschmarkt area. However, I think my most recent visit was the last one.
The reason I will explore other hotels in the neighborhood is that the service and room quality at the Secession is extremely uneven. To start with, their "Standard double" room is anything but standard. Using this same label I've been put into tiny little rooms with barely any sunlight penetrating the windows all the way to luxurious rooms with a beautiful view. Of course there is going to be some variation in an old building such as this, but at the very least they should place the pictures for the smallest possible room that you may get. In actuality all pictures on the website and next to the hotel entrance are showing the biggest "standard double" room that I've been put in. A better solution would be to make these rooms into different price tiers, so customers can know what they are getting in advance.
The staff is similarly variable, some of them are kind, helpful, knowledgeable and speak great English, while others are the exact opposite.
Free wifi is included with the rooms, but this also comes with a huge caveat. There is no wifi reception in many of the rooms, and even if there is reception, many devices cannot connect to the Hotel wifi (I'm not sure why, I've never seen this problem with other wifi hotspots). Also, you need to go through a log-in page to use the wifi, using a code provided at the reception. The log-in expires after 5 minutes of inactivity, so each time you pull out your phone, you will have to log-in again. Also, due to this time-out, push-based services such as iMessage, Skype, etc. do not work on the Hotel wifi unless you are actively browsing the net when a message arrives.
If you are particularly lucky, your room is covered by one of the neighboring free wifi spots that work a lot better than the Hotel's antiquated service.
The hotel shows many other small signs of management failure as well, for example during our last visit, out of the 3 elevators (2 service + 1 guest) only one (a service elevator) was running. One other time they first forgot to provide the requested baby cot, then provided one that was broken, but eventually they came up with a working one after some investigation.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.
Report response as inappropriate
thank you very much for taking the time to describe your impressions regarding your stay at our hotel. First of all, we would like to apologize for the inconveniences described.
Your comments are highly valuable to us to constantly improve the quality of our service.
Please be assured, that an excellent treatment of our guests is first priority to us.
We are looking forward to welcoming you again in our hotel.
This response is the subjective opinion of the management representative and not of TripAdvisor LLC.