Attended a wedding last August 2016 and it was held in the Conservatory. No proper sound system so guests could hardly hear the wedding ceremony proceedings. Venue itself is beautiful.
Went here at another time to tour the place. Kids loved the swimming pool-turned theatre which showed the Casa Loma history. Able to climb up one of the towers. Quite eerie but was quite fun.
Downstairs restaurant was decent.
Underground path to the stables was incredible. Lots of vintage cars in the garage.