I really like the instructors at Birkam Yoga Central Valley. The classes are challenging and keep me coming back for more.
Something I don't like, that I've noticed lately, is that the yoga room smells. Sometimes it doesn't smell that bad, other times it smells really bad, overall though there is a definite need for the carpet to be cleaned at least once a week.
I don't want to sound picky but it really messes up my concentration when I get a whiff of the carpet when I'm doing certain poses.
Also, people should come to class somewhat clean and conscious of their hygiene.