I bought 3 Everest 10s recently, one for my self and each of my boys. I found it very capable straight out of the box but I did a few cheap upgrades. Right off the bat I put in Dean's connectors, 5200 mah 2S 50C lipos and a waterproof 20kg servo. Next I swapped out the motor to a 35T and cut the lugs on the tires. This thing is totally awesome now!