Lenovo a6000 when it was launched into the market was the best budget phone but as new phones at the same price with additional features which were missing in the lenovo a6000+ were launched like gyroscope, light sensor, etc
and camera quality of 13 mp qnd the issue with lenovo a6000 is the model had a problem with lollipop rom which(updates) but inspite of all this lenovo was a tough phone for me as it slipped from my had and almost survived upto 10 drops which other phones dont example -"micromax" and the camera qualiy is also good but one sudden day my phone switched off and never turned on it worked for nearly 2 years for the price of 8000 for me
if you are planning to buy one you must bu a case as the panel is very plasticky and may break any moment