I was having some serious framerate issues on the ground and had to stop for a moment at multiple times to fix settings. Justin was very friendly and accommodating while I was working through these issues. They routed other taxiing traffic around professionally as if this were the real world and my plane had an issue. I was especially surprised to learn that this was a student trying to get their tower cert – they seemed like they were an expert. I’d love to fly though Toronto airspace again if Justin were controlling!