Had it on another Haas mill I had, VF-4, used a bit, but not as much as you would think. Best for large deep pockets(like molds), deep hole drill if a good size hole etc.
But, remember that the tools you use need to be through drilled to use TSC. Drills, endmills, cutters,----all much much higher cost.
Extra maintenance, filters to buy, must be used to keep in good shape, with use comes more filters, etc. etc. Possible damage to spindle is leaks occur.
$6,500 buys a lot of tooling, or a really nice useful 4th Axis!!!!!
Mike
Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28