couple questions on the MMM

[t-maxxracer32]

hey guys since the monster is running for so cheap right now i was thinking about picking one up but i had a couple probably already answered questions



1. will it do ok on 2s? or is it a 3-6s controller?
2. if/when it dies on me do i have to pay a replacement charge or will castle hook it up for the first year or whatever
3. i havent heard many people running their own becs why is this?

thanks for all the help.