Would buying this laptop be a good idea?

So, i'm thinking about purchasing a 2008 MacBook Air. Yes, I know. It's old. I've found a couple of places that sell some in very good condition. If I get it, would it be a good idea to take all of my music and photos, and belongings from my desktop computer, and put them in the 2008 MacBook Air? I will still keep the desktop, because it is new, and very good. My family uses the desktop, and I would just like a laptop for myself. Would the 2008 MacBook Air be reliable for me to entrust with all of my music without it crashing and never turning back on? Could I also use it to sync my iPhone(5), and iPad(2), or would it be too old?

It might be a little slow but yes macs are pretty reliable and they don't break down.

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