My wife and I stayed at the Metropole Hotel in Brussels in Sep 2018. The following are some thoughts about our stay.
Recommendations and Reservation
We chose the Metropole based on recommendations at Frommer's and Lonely Planet. Price seemed decent (Brussels isn't a particularly expensive play to stay, at least in late Sep). Since we have a Citi Prestige credit card that offers a 4th night free, we used that to book (you have to go through their website or their concierge to get the 4th night free).
Getting to the hotel from the airport
Since we had luggage, we took at Uber from Brussels airport to the hotel instead of the train to Brussels Central. The driver dropped us off on the other side of the square which wasn't the best as we had to lug our bags all the way across the square (after figuring out where the hotel actually was - there was construction going on in front of the hotel so obscuring the sign). The entrance is rather nondescript but once you're in, the lobby and decor is Belle Epoque and rather grand and charming.
We booked a "Privilege Double" since we wanted a refurbished room. Room was decently large and nicely decorated with period furniture. We really felt that we were experiencing a different era.
Bed was large (king size) and comfortable - except that I could easy feel the gap between the two mattresses - it was obvious that they had combined two singles with a thin pad on top to create a king. The carpet was reasonably thick - enough that praying on it was not problem for my aging knees. Internet was decent (I had a work emergency so had to dial in to a video conference back to the states and that wasn't a problem) - getting the qibla direction wasn't an issue either.
Bathroom was huge, with a tub and a separate stand up shower and twin sinks. Nicely finished in nice looking marble.
The tap/sink layout was okay for washing hands, arms and face (e.g. while making wudu or ablution) and so was the height for washing feet. However, there weren't enough racks to hold the towels (notice the file of towels on the sink). Also the arrangement of the shower door (though nice looking) allowed some water to leak through to the floor, even after carefully shutting the door (seemingly) completely. The biggest issue was the toilet. It was in a "separate' room (good) but room was so small that couldn't sit comfortably on the toilet.
Note the (lack of) space between the front of the seat and the wall in front of it.
The Metropole is located well. Close to the Central train station, walking distance to Grand Place and various eateries. Breakfast wasn't included in our rate and we didn't eat a single meal at the hotel itself. There is a Metro stop right in front of the hotel with a direct route to the South train station for taking international trains. The only caveat was that our credit card wouldn't work on the automatic ticket machines (tip: get a chip and PIN credit card, ours didn't have a PIN) so we had to go to the main entrance of the Metro station with a staff booth, which was a couple of blocks away. No mosque close by though.