I live in Tijuana but cross the border 3-5 times a week. I have a Global Entry Card and use the Sentri Lanes. My house is pretty much equidistant from San Ysidro and Otay.
On days I need to cross, I check BorderTraffic before leaving home. Usually Otay has the lower crossing wait time. However, Otay wait time only goes to 19 minutes plus. It can be longer.
The golden part of BorderTraffic is the cameras. Let’s face it, wait time has a lot of variables. For instance, how many gates are open at any point in time. CBP will flex to open up to 4 Sentri lanes at Otay, or may only be using one. Then there is the question of how many cars are coming in at what rate. Add to that your drive time to the border and what can change. And lastly, what is time between app’s estimated wait time refresh. Cameras give me a better feel for wait time.
By the way, the cameras help me know which is better route to use to get there. I have two main routes to Otay. But if TJ police shut down the left turn from Belles Artes, then you need to go further East to make a uturn. My other route avoids that. Camera 3 shows the intersection.
I LOVE BorderTraffic. CBP app is useless.