One of the busiest Starbucks due to the location (Hurontario & QEW) and being open 24-7. Expect a line up at any time of the day, but I must say the staff has always been quick, efficient and courteous whenever I've been. The person who I believe is the manager is especially cheerful and tries to greet every customer while getting orders done, which isn't always possible. I've worked in customer service, so I know how difficult maintaining standards in a fast paced environment can be and tend to notice a job well done.
The good thing is this location seems to be well stocked compared to others and I've rarely if ever had to substitute my order, which makes me happy since I'm quite picky. Despite it being busy, there tends to be free seating in the long, narrow area as well as the patio. Probably because neither area has an amazing ambience (due to the size and facing parking/traffic) but sometimes any seat is better than none.
Overall it's reliable and relatively convenient. I come here often since it's the Starbucks closest to me and other than the tight, odd-shaped parking lot I have no complaints!