When I was first looking, I checked out the ratings on several sites, and let's just say Colonade was disgusting from what I read. However, I also knew some upper years which told me, some places have problems.
Well, I've been in the Colonade (Estate building) since August and let's say I have no problems at all. Yes, there's weird people living in here as well but apart from that my place is nice. I have several friends living in different units and they like it, apart from some friends who live in a unit at the top floor. I would recommend to NOT live on the top floor of Colonade. No rats (touch wood), or bugs. Each hallway has a different smell, but whatever. Also the parking garage looks like its falling apart, and theres this nasty crap that drips from the ceiling and stains ur car, which requires some hardwork to get off. Other than that, it's right across the street. Plenty of PCO students live in both buildings.
You pay for electricity, gas/heat is free. Now, when they say "free heat", you see theres constantly "heat" coming out from the radiators, however I think when you turn the fan ON (to blow heat out faster) than you pay for the electricity to use the fan. Thats my guess. And I'd also go with the cheaper 1 bedroom that comes with bare minimum. It's not worth the $30 USD more a month for a microwave/dishwasher. Just buy a $30 microwave and wash your dishes! (Since you have to pay for electricity to use the dishwasher too!)
Oh, and regarding electricity, I've paid from $3 to $15 per month. Some people pay $30 per month. It's really hit and miss as well with that. So far there's been 2 nights without hot water/heat since August. In the end, my place is pretty nice, and I keep it clean, with no rodents and all that nonsense. I'm going to be moving into a 3bedroom next yr in Estate, so as you can see, I don't mind this place at all.
Let me know if you have any other questions. I've also been to places in Wyncote and Manor (the other Colonade building) and Trilogy.