If you have a table saw (cabinet or portable btw?) and a miter saw, the main functionality of the MFT in a home shop will be workholding, in which case, there may be better solutions for you depending upon how much of your own time you want to invest in building them.
Even with those tools, the MFT may still be useful for cutting purposes for the following sorts of situations:
Repeat cross or angled cuts on material that is wider than your miter saw capacity
Repeat cross or angled cuts on any material (if you don't have capacity to do batching cuts on miter saw or table saw with miter gauge/sled)
Extreme precise bevel cuts on longer and/or wider material (material that is too wide for miter saw, and too long for a miter gauge/sled on the table saw) -- though repeat cuts that exceed the length of the MFT fence will require additional support strategies, like the UG stand extensions, which also attach to MFT
Now, if you don't trust the fences on your table saw or miter saw to produce perfectly square cuts, then the MFT may have utility for routine cutting, since it can be dialed in pretty accurately.
When we turn to workholding, then the MFT is a pretty neat solution. To maximize this you would want to get the Festool in-line clamping elements, or the Kreg automax clamps outfitted with the
Senecabench dog hold down, and stops like Qwas dogs or the veritas low profile planing stops. But it's basic functionality for holding stuff down flat can be replicated pretty easily just by making your own top -- there are a variety of accessories out there for drilling your own, reasonably accurate hole pattern, if your interested. You won't get the CNC-assured accuracy of the MFT hole pattern, but if you're using it mainly for workholding that doesn't really matter. The one thing that can't be as easily replicated, unless you're going to edge the top with extrusions yourself, is the vertical holding capacity of the MFT. The virtue of making your own is that it can be made thicker, in material that is more robust than MDF, or in custom dimensions.
That's the route I eventually went, and built a hybrid workbench with an MFT style hole pattern. I can now do a good portion of regular operations on that bench, including tracksaw cutting, since I have the in-line workholding capacity of the wagon vise.

Building your own bench/worksurface can take some time however, depending upon how fancy you want to get, and so the MFT is a nice out of the box solution that can be folded away when not in use.