In September of 2014, at a blowout sale on CNE grounds I bought my first bike I had purchased in 14 years. I remember meeting one of the guys from Oxygen there. He was extremely professional, friendly, approachable and knowledgeable.
My three interactions I've had with all the folks at Oxygen have been positive. They give me free tune ups for life with the purchase of the bike. In the spring of 2015 they fixed a cable on my bike for free, and today (sept 2015) I had an informative feedback interaction with one of the mechanics while dropping my bike off for the yearly tune up. Good guys, with good knowledge in a small shop, but worth the time checking them out and doing business with them. They're just too far away from where I live :)