I wouldn't discount the ExtremeAire compressor line. I have had mine since 2006 without a single hitch. I have also never heard of a single failure. I think it is very worthy to add to the club. It is also priced in between the two you mentioned.
Product : Extreme Outback
I personally couldn't trust the ARB as I have seen two failures of the twins.
Smitty
I have tested the Extreme Mega and it beat the PUMA hands down and one of the only compressor that the manufacture has no problem mounting outside under the vehicle. A compressor I would have considered if I had money.
