AROS is, at the moment, my only way to get a new Amigalike operating system, so I'll echo the "last hope/only hope" sentiment. (Although MorphOS seems to have new hope for the future.)
I've tried it on x86 Native, x86-Linux and PPC-Linux. Both the Linux hosted versions are exactly the same. The x86 native version is the same but suffers from a lack of drivers, especially for network cards, so you have to be selective in what you try to install it on if you want everything to work.
I'm currently finding parts to build a dedicated, compatible PC for AROS, so I'll be reporting on how that goes when everything's working.
It's correct also to note that AROS suffers from a lack of apps, but development of the OS seems to be really rocketing forward lately so hopfully there'll be at least a working browser soon. (Or built in 68k emulation.)