I have the Carson (belongs to Tamiya) Montana, my first rc and I didn't want to spend too much. Though the distant LHS recommended over more expensive rc's (and said it would be nearly as tough as the Savy) I just never got to like it and I really regret not having seen the american hobby shops earlier and getting a more quality rc. I broke it during break in and haven't fixed it (the instructions are really huge crap), loving my Savy X SS so much more.
And Kemo is right, this one really is a XTM Mammoth.
So my dislike is more of a personal thing, I just can't get myself to love it.