Kelly, are you referring to the Canadian based charter company Skyservice? If so, you may want to also post on the Canadian board.
I have never flown them, but I don't recommend charters. If you recall the Canada 3000 situation, stranding thousands of passengers around the world, and the more recent Jetsgo situation, you may understand why I don't recommend a charter. I also caution travellers that charters may have more strict checked baggage and carry on restrictions. Often the seat pitch is smaller to accommodate more seats on the plane.
While I have no idea of Skyservice's financial situation, if a charter goes out of business suddenly as in those above two examples, other airlines won't usually assist with lower fares, etc to get you home. I do know that Skyservice reduced or cancelled it's service for Winter 05/06 to/from the West Coast, which may be of concern.
(And I saw where you yourself posted that they have cancelled a number of the Toronto - Orlando flights short term....)
Hopefully someone who has flown them and is familiar with their situation can assist....
Hope that you have a good trip regardless!!!