Hey nice to hear from you!
Yeah the navigation is not quite ready for prime time in areas that haven't been fully edited yet but simply driving with Waze on helps tons! Like you say, sometime feels like a ghost town sometimes but its encouraging to see lots of new users all the time and I have seen quite a few people on although it is not as consistant as we would like it for highly usable traffic info.
My goal is to edit all of Winnipeg and I have done approximately 20 percent of the city so far and will continue chipping away at it until it is done. Which areas of downtown are giving you problems? I can prioritize those. You can also report missing turns, incorrect driving instructions, missing roads etc within the app then I can direct my attention to those spots. Another thing you can do to help is to promote, promote, and promote some more. Get your friends and families using it and we will be sure to grow it by word of mouth. Despite not having live traffice everywhere the photo radar reminders are super useful as would be reports of police traps, accidents, etc.
Thanks for your help! Every little bit counts!