I bought a filter setup 20 some odd years ago and I used it exactly once and I learned three things as a result:
1) Filtered clarity adds nothing to the flavor of the beer (and in fact may take something away).
2) Filtering is a pain in the arse
3) Beer can get just as clear on its own when it's properly aged.
Ever since then, all of my beers spend a few weeks in a carboy in a fridge held at 33°F, and then they get transferred to the keg for serving (and from which I can also bottle as needed for gifting). It's clear and bright from the first pour to the last...no sludge.
Commercial breweries (especially, it seems, many of the newer ones) rush their beer out and filter it for clarity. Not being in a particular hurry myself, I just let nature do the work. And it's one less piece of kit to clean afterwards.
After that first use, my filter housing became a simple carbon filter through which I run my municipal water for brewing.