Let us know how the new AC biz class is. I'm suppose to flying to Toronto end of this month for work, going to go business but I usually have to take the first flight out from YVR and I get stuck on the A321. Awful plane to spend 4+hours on.
Not too many Airliners are going for the 7478 to use on passenger routes because the 77X and A350 are the two airplanes most airliners are going to get for med-long haul looking a few years ahead. The 7478 has done well when it comes to cargo but passenger wise it hasn't and I don't know if Boeing was really intended it to be successful passenger jet.
Recent flight I took from YVR - LHR on BA's club world on the 744;

Arrivals lounge at LHR: