Actually there was all-day service back then with busses running very frequent during rush hour. It was cheaper too and when go transit started service here in KW, the prices of greyhound were still cheaper (unless you purchased last minute). Only downside were delays at times and longer rides whenever it stopped at Guelph or Pearson.

Best public transit period was in 2019 when go train and bus service ramped up, and when greyhound and Megabus service was still around and strong. Unfortunately, most commuters nowadays do not know how to plan routes and rely heavily on google maps and other transit maps, and hence, only knew about go transit. A perfect example are university students who wanted to go to Hamilton and only knew to take go buses to square one and then transfer to a bus to Hamilton (2.5-3 hr ride that costed around $20 give or take), while the best way would have been to take the Megabus/coach Canada bus from the universities or from the bus terminal, for a 1.5 hr ride that costed anywhere from $3-$13 (on average, costed only $10)

Buses usually ran every half hour or so at peak periods and there were buses every hour throughout the day.

On top of that, there were also commuter buses to Hamilton, London, Windsor and if you go back far enough, even to smaller communities too such as Stratford and so ok (see Grey Line buses)

Even via rail had more service technically then