Just rode it (free ticket) tonight at midnight, with my kids
YYZ - Weston (elevator down, walk to the other side, go up to Track 3) - back to YYZ

I liked the overall feeling, very clean, staff (MANY of them) are friendly & kind
I notice each train has a Female staff? wearing a cute hat/cap

Only got checked ticket on YYZ-Weston
Trains are a bit bumpy/shaky
Seats have AC outlets besides them
Big luggage racks
SUPER BIG handicap-accessible washroom (like the ones in Europe trains) with diaper change table
LCD Screens inside, not sure if it shows the STATION name though
Didn't get a paper train though @@