We had an apartment room for our family visit, two (young) children and two adults. The floor was incredibly dirty, all edges of the rooms were also dirty, skirting boards, walls, etc. The air con hardly worked so the room was between 22 and 23 degrees for the whole stay. The fridge was broken. The hairdryer was broken. Numerous bulbs in the lights were broken. Overall I'm incredibly unimpressed with the room. Breakfast is well over €20 each, kids half price. I understand that food costs quite a bit, but over €60 per day to eat breakfast is just ridiculous!
The positives are that it's close to the train station and close to the zoo. Walking to the historic centre of Antwerp is easily achieved in under 15 minutes.