@Beagle Pretty much. The choice must be based on personal preference.
Headphone Reviews and Discussion - Head-Fi.org
KaiFi
Excellent review. I agree the main point of going closed-back is isolation and it sounds like these headphones don’t have it. For that price, I think they can be ruled out for me.
raghumani
Nice review. I seriously considered this headphone and decided to get the ZMF Atrium closed instead due to the isolation and sound leakage issue. There have been several reviews complaining about this - and as was mentioned above, this is the primary reason why I was in the market for a closed back headphone.
BTW - vina (or veena as it is more commonly spelled) is not synonymous with sitar. "Sitar" refers to a specific instrument while "veena" is a generic suffix applied to a large number of different plucked string instruments of Indian origin - not all of which are closely related. So, you have instruments like saraswati veena, rudra veena, chitra veena - all of which bear some superficial resemblance to each other but are often not closely related.
BTW - vina (or veena as it is more commonly spelled) is not synonymous with sitar. "Sitar" refers to a specific instrument while "veena" is a generic suffix applied to a large number of different plucked string instruments of Indian origin - not all of which are closely related. So, you have instruments like saraswati veena, rudra veena, chitra veena - all of which bear some superficial resemblance to each other but are often not closely related.
betula
@raghumani Thanks for your points on the etymology. Perhaps HiFiMan could update their marketing material based on your post. 
Dixter
wonder why no one is comparing to the LCD-XC21 ....
Reactcore
Nice older picture of your 600i.. i still remember it made me get 400i in the past 
Seems that you cannot have it all in one headphone. You can have 100% of 90% or 90% of 100%.