I actually visited the North York Location at Yorkdale Mall which is a great place to get your chimneys if you're not into lining up. I've had the original chimney pastry in Prague and can confirm that I actually prefer the taste of Eva's.
We went on Black Friday and got two chimneys for the price of one (SCORE!). We had the holiday flavours - gingerbread and dark chocolate. Both were AMAZING. The pastry was warm and fluffy and the toppings were crunch and delicious. They added flavour without being too sweet which I find is a common problem for these types of gourmet desserts!
I would definitely skip the Ice cream, I think part of what makes a chimney amazing is how warm and soft they are.
Tip: They have loyalty cards with stamps so if you have enough chimneys, you can get free ones!