How good are Isha's practices?

[bobbyward]

Anybody been initiated into any of Isha's practices and done them for a decent period of time, what is your experience of them, are they high level spiritual practices? Have you come across practices that are more effective than ishas?

List of Isha practices 

Bhuta shuddhi, surya kriya, yogasanas, shambhavi mahamudra, shoonya, shakti chalana kriya

[Rolo]

I like them, there are a heap of Isha apps that you can do, there is a practice you didn't mention that is called upa yoga.

[Inliytened1]

@bobbyward just do self inquiry..do the practices you mentioned include that?