How do I feel about it?

Difficult.
I am impressed controlling both V and current limit can be done with LM317.
Do you understand how it works?
It needs 3 voltage rails, Vin, V+ and -6V.
The volt adjust and current limit is not that easy to understand.
It may not be easy to add panel meter to show the set voltage and/or set current.
If you just want to build a bench psu - this may work.
Does it help your understanding - only you can answer that.