I rode into Toronto 2 weekends ago basically like this and it was a mostly wonderful route. I did get a bit lost in Mississauga and ended up on the sawmill creek trail and it was a bit bumpy... the map shows this way as being nicer so I will try that next time I ride into town. I bonked and took the GO bus home... next time I wanna do the escape from Toronto too. The lakeshore part of the ride was really nice, in fact most of the ride was. The cycling around Kitchener is great and Hamilton is pretty nice too, a rail trail runs from Hamilton to Brantford and the ride up the grand from there is a spectacular mix of trails and quiet roads.