I like how this McDonald's is within the TTC fare paid area - I think it's the only one in the whole TTC subway system. This lets me grab food and drink on my commute, and saves me from paying an extra token to get out of the station.
As far as service goes, the service counter within the station is rather narrow, but hey it works. The staff and food quality are on par with other McDonald's locations; nothing especially bad or good.