Demon X pit bikes, any good?

I have a moped cause i'm only 16 so don't give get a proper bike please. Anyway, i heard Demon X are pretty good and they are Taiwanese. Apparently these Taiwanese bikes are much better than chinese like TGB mopeds are pretty good. Also the Demon X bikes are pretty cheap but look good. I was looking at the Demon XLR125, is it any good or do you have experience with Demon X. Once i have been riding long enough i will upgrade to like a Yamaha or Honda or something, but for now i want a pit bike to get used to motocross. Are these Demon X bikes any good, Thank for the help, best answer 10 points!