Tried Chimneys for the first time tonight at their food truck at Mississauga's Christmas/Holiday Market and left pretty disappointed.
The total wait time was around 45 minutes. If this was purely due to a long lineup and the cooking process, OK that's still acceptable, but disorganization definitely contributed to the long wait time. People who ordered after us received their chimneys before (while people who had ordered BEFORE us kept waiting as well). They should really switch from calling out names to a numbered system.
There was a "cashless" sign that wasn't clearly visible until you got close - this could have been placed better.
As for the chimney itself - I ordered the Chocolatey Golden Glazed (cane sugar + Nutella) for $8. It was tasty (can't go wrong with Nutella) but not that special - it was definitely expensive at $8 given that it's completely hollow.
My friend had briefly lined up with us for Chimneys before switching her mind and lining up for churros. While the line-up appeared longer, she was able to get in line, order, receive, and eat her 3 stuffed churros for $5 while we waited for our orders.