This is the kind of quality I want and expect from a website called Hacker News.
It's way more fun to see a real solution for a problem than it is to see someone complain that the cheapest available product is lacking in finesse.
Good stuff. Are you using RouterOS or SwOS on that little guy?
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Related, here's a moneyshot of my Mikrotik Hex S that I've got in a portable rack: https://i.postimg.cc/cCJhfkv1/image.png
That very cheap gigabit copper SFP was running hotter than I'd like -- it probably would have been fine, but this rig is meant to run outside while camping off-grid in the sun in central Florida. So I put some heatsinks from my 3D printing stash on there and so far they've stayed put.
In this system, the Hex S is running OpenWRT and is configured as a PoE-powered managed switch. In that role, it switches packets and does VLAN stuff fine, and is probably a bit of overkill.
But it's also one of several layers of manual redundancy, which is important in that environment: One does not simply go to the store and buy special electronics in central Florida. So it isn't included in the travel kit, then it doesn't exist.
With one shell script, it stops being just-a-switch and becomes a router with all the usual services, plus SQM tricks and multiple WAN ports. The rig works well.