Are you talking about buying a local set or an export set?
Red Bean should be fine if the price is right. Most of us bought an export set from online shops which have physical shops as well as the online price is usually better and much cheaper due to online promotion.
One thing to note though. If the shop gives you a China export set. The set would likely to be loaded with China rom or 3rd party rom. You will have to flash it to official Global rom on your own or ask the shop to help flashing for you if they are willing and know how to do it.
Anyway, flashing to Global rom is a simple process. Many bros here have learned and done so with ease.
Mi Max is really a damn good phone for media purposes, playing non extreme graphic intensive games as well as for ease of reading and typing with such huge screen. The stamina of its huge 4850mha battery is amazing too.
MIUI itself is snappy too.