I have used this app since launch and it's a must have for travellers. I can't speak to other locations but anyone looking to find cheap deals out of Toronto should definitely have this app. I have saved thousands over the years. The subscription cost doesn't bother me a lick. Booking one flight deal a year saves you more than the subscription fee. The app probably won't help if you're hoping to go one specific place at a specific time but if you're open and flexible, Next Departue is amazing