Wife and I will be transiting in YVR from USA to Europe in a few days. We'll have a long layover and we're planning to leave the airport and go into the city center (we're eligble). I need your help for a few questions:

Question 1: is it feasible to go from transborder section to international section, go into the MLL and have breakfast (we're eligble), then leave the airport to the city? Or would it be more reasonable to leave straight away for the city center?

Question 2: is there any place we can store our luggage at the airport, before going to the city center? Is it possible at the lounge?

Question 3: any trouble we should antecipate in getting to the international area again? Some airports in Europe are a zoo at the moment, with long queues even for J or status holding passangers. We are planning to be back at the airport 2h before our flight.

Thanks in advance