I had a one night stay here, and I kind of love this hotel.
It's fairly basic, as one would expect from the Lindner brand. The lobby is very nicely designed, definitely a vibe.
I was upgraded to a suite as a Globalist. It had a large balcony and a nice view of the city. Breakfast was fairly substantial, and they even had prosecco available (though I wasn't exactly ready to start the party at 6:30 AM).
You're literally at the train station, but you can walk anywhere in Antwerp fairly easily. This is a great option if you have a morning flight out of BRU as trains run to the airport every 30 minutes and take 29 minutes to get there. I paid 3,500 points for my stay... A steal!