I paid for TomTom and subscribe to their traffic subscription and have never regretted the purchase. Their navigation and traffic information is exceptionally good, and I have never been let down. The estimated arrival time is extremely accurate, normally only adjusts by 1 or 2 minutes depending on how quickly I drive. The app always finds the fastest route, and should traffic mean that another route is faster then it will re-route me there. I drive a lot, so I consider this an investment to save me time, I have always found free alternatives to be slightly worse including Google Maps & Apple Maps. I will admit I have not used these regularly in the past few years, but TomTom has consistently delivered fantastic results, and saved me hours in traffic.