I stayed in the Mona Lisa suite, on the top floor (3rd level), a very homely suite which was spacious and very well fitted out, and included a waterfall spa shower which was something I'd never heard of before but was great.
The house backs onto a picture-perfect suburban neighborhood; outside the front of the house is a streetcar stop where you can catch a streetcar into the city, or (in the opposite direction) to the nearest subway station, where there are connecting buses and streetcars; the subway station is about 10 minutes walk away.
There's a nice little restaurant area about 20 minutes walk away, in Queen Street near the beach, (you can also get there by bus). Journeys into the city take up to 40 minutes by streetcar, and less by the subway train.
I much enjoyed my stay at the Great Gerrard.