Just had our wedding on board the Tall Ship Kajama this past weekend and it was a blast!
The staff were courteous, efficient, and very helpful. I never had to go looking for staff because everything was taken care of, from dinner to drinks, and they even took the initiative to work with the photographers and set up a slideshow projection on one of the sails (which are just for show, by the way).
The food was tasty, better than I had at some other venues. The beer selection was very good and they allowed us to make any changes to the alcohol menu in order to keep costs down or to request special items
Most of all, the night cruise gave us one of the greatest views of the city we have ever seen.
We brought our own DJ and the sound system suited our needs very well, though announcements could not be heard below decks.
Definitely recommended for special events!