Boost controller and turbo timer

Okay, so I'm about to buy a used turbo timer and boost controller. It is the Greddy profec B boost controller black and the Greddy turbo timer black. Buying them together for $250 shippped. Do you think these are good products, im not familar with greddy electronics. Are they worth it or should i get a different brand?

Personally I wouldn't bother with a turbo timer from any company. They make your car easier to steal since they splice right into your ignition. Why not save some money and just sit in the car and let it idle for about thirty seconds? However, the Profec B is a great boost controller and that is a pretty good price to pay for one.