So I got an invite from Apple (If it really is Apple), to Beta test Mavericks.
I have one partition with Snow Leopard for legacy software, and the other is Mountain Lion.
I do use my home computer for freelance, but it's not as critical as my work computer.
I was going to upgrade when it comes out anyway , soooooo…

Should I go for it?

Should I install on an external HD, or just overwrite Mountain Lion?