Stayed one night.
The room I got was spacious and looked like it had been recently renovated to modern decor with a conformable chair, table to work on, plus a few seats dotted around the room. It was a hot and humid day, so it was a shock to discover that the room did not have A/C. The room does come supplied with a fan, which took about an hour to cool the room down. Most importantly it cooled the room enough to sleep comfortably. The room also had a kettle and coffee/tea supplied, which was a nice touch.
The bed was okay and seem to have been 2 single beds pushed together, that or mattress had a lump seam all down the middle. So I ended up sleeping on just one side of the bed. The bed also came with 2 thin square shaped pillows that seem to be so popular Belgium. Ended up stacking the 2 together as I prefer a thicker pillow.
Location wise, the hotel is about 10 minutes walk to the Charleroi Sud and the main bus station. Pretty straightforward to get from there to the hotel. As with most cities around the world, there's homeless people around the city centre and the walk will involve walking past a few. Both day and night. They're mostly harmless and don't seem to bother the tourists of people in general. As it's in the city centre, there's plenty of choices for eating. The hotel is only about 10 minutes walk to the Charles II place, but uphill. Proximity to the station makes life easy.
Staff were excellent and friendly.