I buy micromax a77 in jan 2014 and used it till now and this phone main advantages is its big screen, 1 gb ram, and 3000 mah battery . presence of 1 gb ram dont lag phone while I use 20 app at same time and its battery run about 18 hrs when we playing high end games I think it is the biggest advantage of this phone.
But one thing is be notice that its loudspeaker volume is very very low . w’cant hear other voice in outside home becoz of loudness . It is the only biggest drawback of this phone .