Our group of four stayed in this apartment in March of 2018. Here is our review:
-Excellent location in Brussels within walking distance to main attractions
-Good size flat- plenty of space for four people
-Good heating on cold days
-Felt secure- door codes worked well
-Bluetooth speaker was great
-Extremely slow WiFi
-Only two rolls of toilet paper supplied
-Very thin pillows on bed
-Flat needed better cleaning- There were splatters on the walls and ceiling from who knows what that should have been cleaned.
This is an great apartment, within an excellent localization, near markets and all kind of stores. There is a subway station just a few meters and buses "at door".
Our previous stay was excellent but unfortunately this time we had a very big problem due to lack of pressure in the hot water. With that, in practice, we could not use the shower, except with cold water, which is not advisable in the winter of Brussels.
We asked help to Smartflats, but all we could get was an information that the problem was with the hot water supplier, so, there was nothing they could do to solve, except wait - which didn't come to a solve until the end of our stay.
Thankfully, there was a bathtub, which allowed, after a wait of about 1 hour for each person, we had at least one bath, although we have lost a good part of our days with this routine, since we are a family of 5 people.... Definitely, it was no good to spend 5 hours/day just to have a bath....
Conclusion, this is an excellent option if all works in the apartment, but, if it has any kind of trouble, maybe your travel will not be so good....