It's been 1.5 years I am using ZF6 and I haven't faced any issues yet...using this brand for the first time, I must say ASUS created the trusted image in my eyes....
I can truly understand, unlike other smartphones, this phone is having motorized camera and other delegate modules that needs to be taken care of while creating a stable version of A11. But I would request that it's a high time to float the stable update globally as within next few months Google will make a announcement about A12.
I completely understand that mods are working really really really hard to roll out the stable version as soon as possible but from user stand point the expectations and Curosity for A11 is also genuine.
Apologies if something said wrong
Thanks
Nikhil