I wouldn't necessarily call this a "15 minute development". I've been living here since they first opened the complex, and I have to drive 20+ minutes just to get my groceries every week; the Aisle24 onsite is very insufficient, unless you want to eat pasta and beans every week. Their beverage selection is decent, and there's lots of snacks on offer, but for anything else you need a car (or just get a meal plan on campus). The rest of the retail onsite is fine, but you'll see more highschool students than actual post-secondary students on a daily basis. The Mezbaan gets more of an "adult" clientele, and the Popeyes is decently popular, but the rest is usually just busy with highschool students during lunch hour and at the end of the day.
Not to rain on anyone's parade, but I think that this development has benefited more the local highschool students, then it has the community near Mooney's Bay at large. A lot of residential units are still empty, as the complex is far from the more "active" neighborhoods along the Trillium Line and they've been drastically increasing their rents in recent years