The heli isn't delicate.. Stuff on this heli breaks just like on every heli.. Every pilot crashes and breaks parts that's just part of flying a heli.. Thats why it's soo gratifying when you get good..

You've never broken a part on one of your rc cars? Do you call them delicate?

These helis are not "common sense" that's why I freak out when people think they should get much larger helis as their first.

Their is no way that you adjusted the servo linkages and the heli still wants to go forward... You were likely adjusting it in the wrong direction.. If the heli is going forward you want to make the linkage longer.. DO NOT use the trim on the remote to do this..

As a newb your son needs to work on hovering the heli 3 - 5 ft off the ground infront of him.. What he should be practicing is keeping the tail pointed towards him until he can hover like a pro with the tail pointing in most directions he should not be taking the heli too high or trying to fly it around..

Flying these helis takes practice... The easiest and best coaxial for indoors is the MCX... This heli is really only meant for indoor flying but the CX is really not a good option unless you have a VERY VERY large indoor space.. The heli will get blown around farr too easily outdoors in the lightest wind..