As stated, chargers and batteries that come with the RTR kits aren't worth the money you pay for them. You are better off buying a Liperior, CNHL, or Zippy battery and an entry level charger. Stay away from the smart chargers unless you are just too lazy to do a little research on LiPo battery care. That is the reason hobby shops push the smart chargers. They don't want to have to deal with teaching customers how to charge LiPo's. There are plenty of YT vids that will teach you all you need to know.
The charger needs to have a storage mode to safely put your batteries in a state where they can sit unused for awhile without degrading. LiPo's don't store well depleted or fully charged. They need to be at 3.8v per cell when stored. Chargers that come with RTR kits don't typically have this storage charge mode.
Other than that, the MT10 is a pretty good truck. I don't own one, but looked into it quite a bit before buying our Grsnite. The Granite was only $320 at that time, or I would have grabbed the MT10.