Valerie's place is spectacular! It is a spacious and very unique space with plenty of room to stretch out. There are 3(!) living spaces in the same massive open living space, punctuated by a beautiful semi-professional kitchen and big balcony with views of the city. The photos do it justice: it's a really special place from which to explore Montreal. Valerie and Ben were very accommodating with beds, etc for our toddlers.
Location was also great - convenience of two metro stops within a 10 min walk and lots of great restaurants, etc in St Henri and surrounding neighborhoods. Atwater Market is phenomenal.
Our only challenge was the major road construction happening below the loft. This isn't the host's fault, but it closed several blocks around the loft and led to a lot of dust and noise. So just be aware if you are coming before September and bring earplugs!