My A500+'s were made in Britain, but have no marks for anything other than Commodore.
I think their advantages far outweigh the disadvantages, you get the classic good looks of the original A500, but RTC, 2Mb of Chip mem (with the obligatory ram board), ECS, KS2 as standard, and it takes almost all the hardware add-ons that were designed for the A500 (even the A501 for 1.5Mb chip mem ;-)).
I've only found a couple of games that don't work, and an upgrade with chip mem can sort that (though I'm not that bothered by it).
The A600 has a plus point in that it's the smallest Amiga, so easier to lug 'round to friends houses for all night gaming sessions!
