United pilot here. If you go with PBS, yer nutz! There are so many different ways for the company to screw pilots with PBS that it isn't funny. Even if you have a benevolent management that programs PBS nicely, it only takes a couple of small management tweaks to turn PBS into a pilot's nightmare.

You've been warned, just like I warned my fellow United pilots before PBS was implemented. If you have any questions about how bad PBS can be, ask a few United pilots. You might find the one-off that's happy with PBS but most will tell you that it stinks.