Installed 4.1 classic on my Cyberstorm PPC and A4000T with mediator. It is way faster on my emulated i7 machine. Not worth it at all.
Get yourself a classic PPC Mac and try MorphOS. Its by far the best way to go and for OS4.1 just use it on a PC. Even buying a specific PC for emulating it would be less money than getting a Cyberstorm and be faster in the end.
... and considering that in near future we will have better GPU emulation under UAE AmigaOS4.1 + UAE will be best possible option. I hope to actually have one of my old PC's set up to run Amiga Forever as a stand alone computer.
BTW. Can I boot AmigaOS4.1 directly under UAE WITHOUT Windows (using Linux)?
Getting some used PPC board for Amiga is still definitely "fun" (AND expensive!), but it depends from that what you would like to do with Amiga. I have AmigaOS4.1 running on my i7 and its fantastic, but I would like to have "real Amiga" that is useful and Amiga is NOT useful without 040/060 or PPC. My current 030 is great... to run games

. It is way to slow to do anything serious.
When you set up you AmigaOS computer ("real" or not) then there is one, tiny problem... LACK OF SOFTWARE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!