If you really need to take your car to Tasmania then obviously you have to take the ferry. Otherwise flying is so much cheaper. The cost of the rooms is very high and you only get a bed and en suite. There are no tea or coffee making facilities or TVs or anything. I am sure that they do their best with the boarding and disembarking but it is a slow process and there is a lot of waiting in your car. At least at the airport you can keep walking around while you wait!