There are few bugs in the software of the phone:
1. You can't save a phone number by highlighting and save from the popup menu. You can key in the name but when you hit save nothing will happen. The only way to save the number is to go to contacts, create new contact and paste the number there, then you can hit save. This is super frustrating especially when you want to be quick.
2. You can't share pictures from supergallery to wechat moments. You have to go to wechat>moments>that camera button on top right and choose photo(this is soooooo like iOS.

Lenovo wants to copy iOS? Later Apple sue them how?

). From gallery to FB messenger, messages, whatsapp, wechat messages, works fine. Only wechat moments.
3. Notifications LED won't respond to 3rd party apps.
4. Will add up later if I can find more bugs.
4. SuperGallery can't detect all photos saved in sdcard, only some photos can.