I'd agree that it could be a z-perm if it weren't for the fact that he stated that only 3 sides were messed up. That square on the green looks orange, but must be red, or 4 faces would be scrambled (as you can clearly see that red, blue and green must be scrambled in some way). That means that one of the other 2 faces must be complete. Simple logic leads you to only one conclusion - the orange being complete, and that leads to that alg I gave. Must have worked. The guy said it fixed it.
Please take off topic discussion off this forum. Thanks.