I have a Vizio 5.2.1 Soundbar and it works great with my Fire TV. It sounds amazingly great considering it's only $300. I liked it so much that I bought a 2nd one for my cave. I really like the Bluetooth sub that then connects the rears so I diont have to run cord.
Yes, if posted on the nerdery I'd probably get torn a new one on how inferior it is to whatever systems they run.