Re: Tbf...
From my view palo is the best Internet firewall you can buy. Fortinet is the cheapest you can get away with.
Non Internet facing is a different game.
Palo is very expensive even compared to checkpoint.
The question though really is can palo make an integrated platform for all security devices and applications. I've largely ignored their non firewall products as I expect most others have. If they can create a unified platform I'm sure there are customers who'd take it.