If got over the phone’s specification than u can think that its phone u should buy
a 5.5 inch screen is sensitive and able to play advanced games with no hang as it have 4GB ram yeah 4Gb with also 2ghz octacore processor thus it have no chances of anything wrong until u damage it:p
The best thing about this phone is its camera 16mp rear camera and 20mp yeah I repeat 20 mp which makes it a perfect selfie phone.
But if u go on its look it Vivo nothing does new in it just make a apple’s copy because it looks as same as apple’s look and even it have same finger touch as apple’s iphone have .but its working is good so u can buy it maybe if u add a apple’s sticker in it back than it look exactly as iphone