I recently used the UP Express on a business trip to Toronto and will use it from now on since I stay in the area (usually One King West).

Really low ridership both ways especially after arriving at T1 on AC154 just before midnight. I purchased my ticket on the flight for $27.50 and no one checked for it on the train.

Bought my return at Union at the desk for the same price. Ticket did get checked.

Since a Presto Card is only good for the UP and the GO Trains (not TTC) I couldn't be bothered to get one in the future even if it is apparently only $19 a trip.

Signage to get the train in Union Station proper is very poor but I now know that it is accessed on a pedway to the SE corner of York and Front.