I really liked the Transit app's integration with Bike Share. The Transit app is the one-stop app for getting around. It integrates every transit agency in the region. Buses, subways, trains, bike share, bikes, micro-mobility and ride share all in a beautiful, modern interface. I used the Transit app to take out bikes and I will miss it cause it worked so well for me. It was easy to buy passes, and get the codes.
It's not that I hate the PBSC app, heck I love the QR code scanning to unlock bikes, and it's easier to find e-bikes, but like ShonTron said, having one app that integrates everything is super convenient.