Yu yureka phone is good conpared to yu yunique. Design and specifications are good than other mobile phones. Network reliability is also good. But, its all depends on operating system. Because it comes from base system of phone and the base is os. Cynogen os is best to users and it free from ram memory. It has own optimisation system.
Once my friend bought new yu yunique phone through amazon. Delivered at home and we checked phone and touch screen was not working properly at tgat time we decided tl replacing and replaced in a week. Main problem is in the phone and its specifications in Cynogen os. This os can't be supported properly in it. Got some problems as heating issues, power consumption, speaker issues and hanging.
Worst experience of this mobile phone in my life. Bad feeling after unpack.