This is one of the most likavle vedio calling app as the vedio calling clarity is so good that you never had lag in between and other thing good about it is the amount of data consumption it consume very less data comarision to other vedio calling apps. Regarding user friendliness it is having very good interface you just need to call like you are doing from phone not any complex working . Other thing the size of the app is also very less so it is good in that way also. I recommeded this app to everyone who do vedio calling.