I think it's only a matter of time before other manufacturers get on the IDS boat, particularly as IoT gains traction. Unfortunately I think the subscription model will be the way it goes also. Glad my Shield is still working although once I've learned more about the way it works, I'll be switching my Sophos UTM 9 PC into production.
fraid not Breda, it's a router replacement, although quite a good one. It's not very friendly in terms of configuration, they defiinitely have their own way of approaching stuff but I really like it, worth learning imo. I think 2 ethernet ports would be min, WAN and LAN (to switch).