Make sure you watch the lines before you line up as some lines are long for no good reason. The cash lines move fast and get you in so get ready to pay cash. The cost is $7/adult. The cost is for a round trip.
The Ferry itself is clean, quick and efficient and provides a good view of Toronto Skyline. There are lot of people with their bikes and dogs but you can still find seating. The ride isn't long so even standing should not be a problem.