So, the Galaxy M series is definitely a good move by Samsung! The things that I like about the M20 is the battery life, USB type C with fast charging and its bright and color accurate IPS display. However, what Samsung could have done better are the camera performance and the choice of SoC.
Superb battery life; Good display; Type C and fast charging
Old chipset; Average front and back cameras; Inaccurate Facial recognition