Works but...
Sorry dude- I'll possibly give it one more shot 🙄 but so far it seems like nothing special. I believe the reviews (of earlier versions) were by people for whom English is not a first language so I rather suspect they were from friends of the developer. That alone has a way of making me suspicious of the app.
Later that same day:
I tried it one more time; it took an ungodly long time to open so I was less able to experiment with others on my impatient subject in an excellent setting: my white & very light taupe long hair Ragdoll cat (with a lion cut!) in front of a double white door with cream tassels hanging from a doorknob on a beige carpet. What an excellent setting to experiment with light settings, filters, temperature, tone... I have a feeling poor Fuzzycat's going to be subjected to more photo sessions in front of the doors while her hair grows back. ☺️