It sounds decent, not really my favorite vibe, not sure if you could call it a vibe. I used the Tayda photoresistors.
Photo Conductive Cell Resistor LDR 650nm RADIAL KE-10720 (taydaelectronics.com)
I didn't match them, I have used them in every build of this pedal thus far.
Yep the diffused yellow LED from Tayda as well.
Throb maybe changes the sound a minute amount but not much.
The Photon vibe and Duo Phase are probably my faves, I have a Photon Vibe on my pedal board as a matter of fact!