The skating seminar itself is $429; the cruise itself runs from $674 to $884, double occupancy, plus taxes, port fees, etc. It didn't say anything about coordinating roommates for the double occupancy cabins. The agency can arrange airfare, or you can do it yourself - not included in the price.
There are two hours of off-ice, six hours (3 days: 7am-9am) of on-ice sessions, plus 3 hours of private lesson ice. There's an hour of "all skaters" on the last full day of the cruise, but it doesn't say if it's on- or off-ice.
Coaches Weisiger and Thelen are President and Exec Director for Grassroots to Champion seminars. 20-minute private lessons are $42 and $34, respectively.