Question about expected wait times shown on TP app

Has anyone ever used TP app for wait times and found them to be more accurate than the posted wait times? For example: right now the TP app shows the posted wait time for Small World to be 40 min but the expected wait time shows 21 minutes. Have you experienced the expected wait times to be accurate?

I always look at the expected wait times. I have found that they are usually more dependable than the posted times. The Disney posted times are the times someone entering the ride vechicle waited to that point. TP is telling you how long your wait will be if you enter now. It is not 100% but I find it very accurate.