This is a standard fifi hook that is lightweight and has a time-tested design. It has gotten many a climber to the summit of El Capitan, myself included. It comes with a pre-sewn-in runner, which has its pros and cons.
If I were to buy a fifi hook today, I would probably get this one, partly because it is one of the only ones available. I have not used the new Petzl Fifi Hook so I can't say how it compares to this one.