They're very good.
But.
It'll make oil change time longer because you have to clean the filter in kerosene or some other such solvent and dry it thoroughly with compressed air before re-installation.
And at five bucks apiece for spin ons, that's twenty oil changes to break even.
On the plus side, you always have a filter when it's time to change oil and there's less stuff to dispose of.
And after twenty changes you're money ahead.
