What to look for in an A3000

[AmigaEd]

I've been thinking about expanding my Amiga collection with an A3000. What kind of things should I look for or look out for?

For example, does the A3000 have the leaking battery issue?

Are there some motherboard revisions that are better than others?

I seem to remember hearing something about the Buster chip revision, but not sure what the issue was.

Regards,
AmigaEd