Delta Burnaby (outside Vancouver) (from early July 2016)
Signature Club Lounge (what they call their concierge lounge) is located on the 20th floor. They have breakfast 7 days a week. M-F 6:30-9:30. Sa/Sun/Holidays 7:30-10:30. Evening hors d'oeuvres 4:30-7:30 every evening. Access for guests in a signature club room or Marriott Gold/Platinum.
We were there for 5 nights. The lounge was not overly busy (like many US lounges) on any of the days, though if it would have been, it would have been out of food for long periods of time. When stocked, the selection was not bad at all. There were always hot real eggs in a warmer/server (parts of it with some melted cheese, other parts just eggs). There was a selection of small pastries, including regular croissants, chocolate croissants, mini muffins, etc. Breads. Cold cuts. Fresh fruit. A self-serve machine that made various coffees and hot chocolate. A small fridge with a nice variety of drinks (including Coke brand items), as well as yogurts.
The problem was that, the quantity of food left out was on the smaller side (they'd have a plate of selection of pastries, and there might be 2-3 of each). Once they were gone, it seemed like they had to call up somewhere to get it (perhaps from the first floor) and they would say it would take 15-20 minutes each time. We didn't run into major issues most of the days (other than a disappointed child in missing a chocolate croissant here or there), but on one day, they had a slightly larger number of people and had major food issues.
They did not appear to be closely tracking the number of people allowed into the lounge per room.