Understatement of the century. Mighty Fine Junk -- it's been a looooong time since I've wasted any money on MFJ rubbish. Life is too short.
Other than an older Ameritron amplifier, which may predate the MFJ acquisition, I see nothing with the MFJ logo looking around my "shack". I moved on from MFJ many years ago and sought better alternatives. Some years ago I bought a Rig Expert AA230-ZOOM analyzer that is far more capable, stable, and compact than any of the MFJ analyzers I had used prior. I also have a NanoVNA that I use for 70cm that is beyond the range of the AA230-ZOOM. Other items in the shack are better built and better performing than their MFJ counterparts such as a West Mountain Radio DC power strip and Palstar and LDG tuners.
I am concerned about the fate of Ameritron and Hy-Gain. These two product lines have a strong history that pre-dates their acquisition by MFJ and it would be a shame to see them disappear from the ham radio marketplace.
I can't think of any one thing they make that isn't available elsewhere. Some of their bread and butter tools, like their classic antenna analyzers, are completely out classed by newer alternatives today. For a long time, however, MFJ was the only affordable source for things like that.
One of the niche MFJ products I bought is a 20 meter telescoping vertical antenna element. That's like an old fashioned car radio antenna but 5.2 meters long. Even that is made by competitors today.