I have Comcast / Xfinity Gigabit tier and I recently switch over from Ubiquiti EdgeRouters to the RB450Gx4. It easily saturates the connection. Based on the test it can handle a few rules as well. It’s essentially a hAP ac2 but with more storage and more RAM instead of wireless. You can find fully built up kits or get individual parts. I don’t have much experience with MT so I don’t have a complex setup and can’t speak to performance when you start adding rules and QoS.