Durability of a CECHL04-model PS3

[Vkmies]

Heyo!

I am being offered a PS3 for a relatively good price, which is great because I actually am interested in the old 80GB piano black, huge bulky ugly thing for it's backwards compatability and overall charm.
My only fear is that the person selling this to me bought it originally used so this bad boy has been in use probably since release in 08. I'm always wary buying newer consoles this used, since they tend to brake easier.
What's the risk factor here? Am I looking at a console that will probably break within 2 years, because I don't want that.
It hasn't been opened and overall it does seem like it's well kept, but most problems with these newer machines happen on the inside, don't they?

Thanks guys! You are the best.