Hi!  What do you think about perfectionism as a topic in psychology?  Is it useful?
Seems like it has many positive but also negative aspects.
I agree with you.  What are some of the positive aspects?  Seems it can help in motivating people to do better.
I guess if they are the normal version that they still try to be perfect BUT it doesn't compromise their self-esteem.
That's true.  Perfectionism has two sides for sure - if someone beats up on themselves, the perfectionism is holding them back.  
They can very easily set themselves up for disappointment.