I have just started learning 3D flying. After destroying a pair of expensive models I decided to look for a more economical approach. The Hummer has certainly lived up to that desire. Assembly was not too tough after viewing two vids on YouTube. The included directions are of little help. I purchased the recommended motor, ESC and servos. This turned out to be a bad decision - more on this later.
The model only required battery placement to achieve balance. Maiden flight required only minor trimming.
The airframe has proven to be very strong. After several crashes I have only managed to break two props. The landing gear attachment is one of the best I have seen on a foam model.
After just a few flights one of the servos failed. After 30 flights the ESC failed. I purchased the recommended 18a ESC. Now I see that the recommendation is 20 - 40a. Oops.
Overall - a great value and an excellent 3D trainer I heartily recommend the Hummer.