Hotel Orion was amazing.
Me and a friend rented room 4 for three nights and was stunned to find out we got not one king-sized bed, but two. And an extra single bed. They were two single beds put together to make a king size, but that's still impressive. They were also pretty soft to sleep on, and not your average hotel hard mattress.
The room itself was fantastic. Although dusty in some corners, it was not only huge, but well maintained as well. Two leather two-seater sofas, one big enough to sleep in and another slightly smaller, with five leather lounge chairs, all of them very comfortable. Mini-refrigerator you can store some drinks in if you want. The bathroom was also nice and had everything you need. Toilet, shower, sink, hair-dryer, shelf. You know.
We never tried the pool or anything outside of our room like the breakfast, so I can't exactly comment on that. I'm not sure if all this applies to the other rooms, but the room we got was incredible for its price.
All this cost us a mere 315€, tax included.
Overall, this is the place to go to if you're going to Ghent to party in Overpoort or just do regular tourist stuff, it's 10 minutes to walk up there and 2 minutes to get to a tram stop. There's a laundromat right up the street as well if it's needed, I'm not sure if they have laundering services there for longer stays. It's also silent at night. Maybe consider something else if you're extremely allergic to dust, but if not, go for this place. Seriously.