A Good quality smartphone with very good features.
1- I love the PIXEL MASTER CAMERA provided by Asus Zenfone. It has lots of mods , like depth of field, low light, HDR , sphero mod , beautification mods. All provide a great imaging features. Zenfone Max also provides laser which gives a really faster focus than other smartphones in this price range.
2- No complaints with the display, it provide good range of color.
3- The 5000 mAh battery gives a lot more backup comparing to other smartphone. This is what now a days android user want BACKUP.
4- Lack of fingerprint sensor, which is a disadavantage. In this budget many smartphones comes with finger sensor.