I own the Anytone D868UV and BTECH DMR-6X2. Both great radios. With 1 watt and Zumspot, the 3100 mA Amp battery lasts forever (not quite, but weeks at a time). Don't know what the 878 offers over others yet, but I'm sure I will purchase it in the next couple of days.
After 55 years of amateur radio, the digital modes have really perked my interest again in radio.