One of my cousin's favourite places to eat while visiting was Gail's. We stopped in the Notting Hill location (my first time there) and I was pleasantly suprised to see a pushchair-friendly ramp + plenty of room to grab a table. I usually visit the St John's Wood and Hampstead locations and they are teeny tiny. We ate those little raspberry cakes in the lower centre. Delicious!
Also, did you know Gail's has a new location in Queen's Park?