Picking the right Bob Duallie?

I’m looking into buying a new BOB Duallie stroller. My son is just turning 2 and my daughter is 2 months. It looks like their current models are:

Revolution Pro Duallie

Revolution Flex 3.0 Duallie

Revolution Flex 2.0 Duallie

Strollers Strides Duallie

Does anyone have experience good or bad with any of these to share? Any certain features that make a big difference? It looks like the Flex 3.0 has magnetic covers for the canopies instead of Velcro, some extra parent pockets, and reflective material. The Pro has a hand break- how important or not have you found that? I’d love to hear your thoughts! Thanks!