We had a brief stay at the lofts. It was a very spacious area and very clean. The rooftop patio had spectacular views and would be a great hangout spot in the warmer weather. Good location and walking distance to all amenities in old Quebec.
If you are travelling with a large group or have a lot of luggage I would recommend dropping off a few people with bags at the location as there is no parking onsite. Offsite parking is a bit of a walk away.