I've been here twice and both times have been really fun. I'm not 100% fearless of heights, but I do get that rush when I'm up there. What I really like about the tower is the section of glass floor that they have. Apparently it's strong enough to hold a couple elephants or something (It's been a while, I don't know the exact strength). I definitely couldn't get myself to cross it when I first saw it...but after you start seeing little kids JUMPING on it...you almost have no choice but to suck it up and cross. Though, I didn't jump on it. I briskly walked/ran across it haha.
I'll probably end up going there again if I go up to Toronto again cause it's simply a great and beautiful view.