LeEco formely known as Letv is one of the best competitors in our market.
Camera- The camera is not so good. It tends to struggle in low light condition. The UI of camera is very similar to iphone.
User Interface- EUi is quite buggy and heavy but leeeco has promised to bring updates to it.
Looks- The look and feel of the device is very premium. Metal unibody is really nice.
Conclusion- After using this phone for quite long I feel the performance is really great.