Hi Penny
So pleased to hear from somebody else booked on this trip. Are you doing the 3 day add-on in Toronto?
My cousin has been on holiday with Just You about ten times now and says how well they look after you. Her tip is to have your Just You luggage label showing on your case as you are waiting to check in and other fellow traveller's will introduce themselves.
Don't suppose you are staying at Heathrow the night before our flight?