I really like mine, although I wouldn't mind a C80, this one does the job. Well detailed and I like the features. Only dislike I have is it takes a while to reload a page as you zoom out when there is a lot of detail as there is in our area. ( Lots of channels, routes, buoys etc. )
For the area you'll be in, it will be fine. Sailing on Lake Ontario, there's very few obstacles except the CN Tower.