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.
I have played with MorphOS on a G5 mac, It seem quite amazing vs my 25 Mhz 68040s and my A3000s and A4000s. In someways MorphOS (with it's clean OS on a G5) seems faster than modern PeeCees with all their OS overhead, however their seems to be a lack of software for MorphOS.
How does AmigaOS 4.1 (on a PPC amiga) compare with MorphOS 3.9 on a G4 or G5 mac? How does AmigaOS 4.1 emulated on WinUAE compare to MorphOS 3.9 on a G4 or G5 Mac?
What about software for morphos vs AmigaOS 4.1 vs 3.9?