Yes the dpro 140 is reliable if you keep ontop of your pre-ride/after-ride maintance. So checking all nuts and bolts are tight, air fillter, oils, chain and sprokets.
Compared to a Honda? What way power or maintance?
The Honda are always more reliable and powerful but you still have to do your pre-ride/after-ride maintance.
Both pre ride and after ride maintenance should be the same on what ever bike you own/ride. The only difference is it may vary time wise from bike to bike.
Keep up with the above and reliability shouldn't be an issue with either China or Jap bikes.
I coulda swore Jack,... you have asked the same questions 10 times in threads YOU already made...., Why cant you just read those replys...? how many times does it need to be said, It does not matter if its a DHZ, Suzuki or a bloody Honda, they will ALL break down and need maintenance at some point in time if you ride them....
Wich one is faster?, they can go as fast as each other.. depending how much money YOU want to spend.
Heres some links.