I recently picked up a used XMAXX. It was pretty cheap and a little beat up. I found a crack in the chassis which is only a $22 part. So I replaced it. It's my first XMAXX and I always wanted to see what they were made of. Man! Sorry but I felt like I was playing with Legos! I know they are pretty tough because they are flexable... bla bla bla. But It really feels like a glorified toy to me. After I was done I did some work on my Krajave and wow! It easier to work on, more solid and well layed out and so so so much better looking! I am selling the XMAXX now!