I loved going to the Paint Lounge. It's truly a different experience than the other amenities/fun things to do in Toronto/GTA. Typical hang outs for me usually involve eating (bubble tea, Korean BBQ, ramen...), so this was refreshingly different... not that I don't love food of course.
I am personally not an arts major or any of the sort so I found the canvases and snacks to be a bit pricy. However, if you go on Wednesdays they have a 20% off discount. Also, be sure to give yourself adequate time to finish your painting as they charge an additional $5 to come back if you need more time to work on your painting (for another day).
What I recommend is splitting a canvas with a friend/boyfriend/girlfriend and making a fun, interactive experience out of it. As I mentioned, I'm not artistic by any means... but that means you just need to plan a little more! We sketched out a rough draft which was easy to follow and relay onto the canvas. They also have templates of photos that you can copy/paint.
It was really fun. I ended up snacking a little bit (which came up to $5-10) on a yogurt covered pretzel here, and something else there... I'd say overall, my bill came up to $30ish? A little steep in my personal opinion, but it was well worth it. I have a beautiful painting in my room now. =)