Is Cubot good smartphone brand ? Cubot mobile phones review

Are Cubot mobile phones good and reliable ? They are quite cheap with good design, but in general I don't know much about them.

Cubot is a Chinese brand with many mobile phone models. Some smartphones have the strengths like high RAM memory, high internal memory, battery capacity, high screen resolution, CPU with 8 cores, multiple cameras, 20 megapixel camera etc.