The modular cables make it a good solution and the price at around 100€ is pretty fair, but are you sure you're not going to need more than 525Watt?

The actual amount of Watt this power supply can provide is a bit less than 500Watt, it has an efficiency of about 85%.

Cons are that it hasn't got a whole lot of molex connections and that it doesn't pack enough power for the really high-end crossfire or SLI combos.

What kind of system do you have?