How to get to astral media by bus or transit?

i'm a grade 12 student looking at doing a coop at astral media, although im unable to drive there every day so i need to know what the best way to get there and the quickest. I know you can take a go bu or train but im just not sure. I live in Oakville trying to get to Hamilton and the address is 883 Upper Wentworth Street. Any possible solutions would be very helpful thanks :D