I agree on using Intel NICs, if it can be helped, for devices that predominantly has a network role. They just work.... and usually, very well.
This is not to say that anything other than Intel would be problematic. Rather, it just becomes a YMMV-type of deal.
With respect, after matching the interfaces to their intended role, the configuration should stick and should survive a power-cycle/reboot. I think that's a fair expectation. I still don't understand why this is not always so on non-appliances.