[snvzz]

Most that exist are still working.

They were well-built, and the most sold models (A500, A600, A1200) do not have the barrel batteries that leak and destroy PCBs.

A500+, A2000/3000/4000 have these batteries, but they weren't anywhere as popular as the other models.

If you own any of these, ensure you've removed the barrel battery (cutting it out with pliers is good enough, and the Amiga will still work).

I personally have 2xA500, 1xA500+, 1xA600, 1xA1200, all working.

I tend to have one running at all times. It's the A1200 right now.

[renaudg]

And for the A600/A1200/CD32, make sure you have them recapped sooner rather than later. Old leaking capacitors can and do damage PCBs.

[rasz]

Most ended up with ram expansions including RTC with battery, not to mention leaked capacitor juice dissolved chip pins and pcb vias.

They were build just a tad better than contemporary Atari ST from the point of signal integrity, but Commodore manufacturing plant was a shit show. Multiple models shipped with capacitors mounted in reverse polarity (1200, 4000, CD32).