Thanks for the replies, I'll probably shoot for the aisle seat in row 12 if still available. Also checked my eUpgrade account and found I have a lot of spare credits, so if space is still available in J this won't be an issue.
The Embraer bulkeads OTOH are great, I agree with the other poster! I've enjoyed a few rides out of LGA and YWG on them. However, given that I no longer live in Canada but fly through YYZ for TPAC and TATL very often, I usually find myself on CRJ-100/200 and widebody AC metal, so don't often have the chance to score a ride on an E75/90 or the baby airbus fleet.