I've visited this space for 2 consecutive Sundays. I visited the EcoFair and the Gluten Free Garage shows.
They use the main hall to set up the exhibitors. Thus far, that has been large enough to allow visitors and exhibitors alike to walk around and peruse the stands at their pace. The Gluten Free Garage was far busier than the EcoFair and was still manageable.
The other spaces available host community workshops, local arts and non-profit associations. There is a clean washroom available and your generic ATM machine. It's a nice, amenable building.