Really lovely self-guided tour. It's got an interesting history (albeit bittersweet). If you're a fan of castles or Downton Abbey-esque estates, Casa Loma is for you. The grounds are frequently used for weddings, so don't be surprised if you are encumbered by wedding parties and photo shoots. It limits your access to certain areas, but congratulations to the newly married couples and happy partygoers.
Tons of lovely photo ops. If you're hungry, they have a restaurant in the basement and two or three more different dining sections on the ground floor. The surprising thing about the dining is that each section serves something different, so you have variety to pick from. There's slow but FREE Wifi in the basement area.
If you visit Toronto, it's a worthwhile place to visit! Be ready to pay for parking if you park onsite.