I like the size, and the lack of queues, the Maple Leaf Lounge is small and not usually very busy, which is nice. It also covers the LHR flights as domestic and international are out of the same section. I would like some more US destinations (something more west), and a non-stop Vancouver, but since they aren't run now it is safe to say there isn't a market, so connections it is. I don't like that there is no lounge of any sorts on the US side, but that is just indicative of the number of US flights, and the size of the planes that travel transborder. The preclearance is a nice feature.