Another bubble tea place in Markham area. I like to categorize tea shops to two category:
1. decent drinks and comfort - quiet environment to get work done (with high speed free wi-fi)
2. good drinks, with lots of specialty drinks - a place to chill with friends
I would say Serissa Cafe is category no.1. Lots of people come here to get work done (mostly students) so generally it won't get too noisy. The drinks are decent, they won't have lots of unique/ house drinks, but that's okay.
I've been here a couple times, and their wifi always work, never disappoint us. They also have good customer service, very patient with all our demanding request (such as asking them to turn the music down). It is located in a corner unit, facing highway 7, so there are lots of natural light during the day. It's actually relaxing to work here. They have only about 40 seats ... most of the time they are not too packed, but maybe just call them ahead of time if you don't want to be driving around and looking for a place to work. They also have extension cord, so I'd say there are about 6-8 outlets spread between 3 tables. Parking lot outside does get really busy, because there are a lot of retailers in the same plaza, but they have an underground parking that's open for customers free of charge. I actually like to park at the underground parking during winter times!