The construction of the s107 is outstanding for the price, I find it hard to believe that these only cost $20 to buy. I find them easy to control and extremely hard to break. Disclosure - I have seen some friends get unlucky and their unit has broken early on with a big crash......but more often than not I've seen these things take a beating and continue to fly.
I took a video of my son flying the s107g. Sure hes flown before but this was his first time flying in a few months and he had to deal with some sidewind from n open window. Even with some moving air to contend with, he was able to easily fly it.
I would say most of the bad reviews on here are from those who got unlucky. I do feel for them but as a prospective buyer you need to understand that its nothing to do with the quality of this helicopter.
I have read people have trouble controlling the s107g. I find the opposite to be true. Im able to easily land mine on my helipad and also fly it through air gates at full speed. My son had a blast playing around with this helicopter trying to land it on the helipad and race through the hoops.
Link to helipad Remote Control Helicopter Landing Pad - Complete Edition - Flashing LED Lights Installed - Suitable for RC Helicopters, Quadcopters, Drones, Syma Helicopters
Link to hoops Drone Racing Obstacle Course. Easy to Build Racing Drone Kit. Create Your Own Drone Racing League. Suitable Drone Games for Kid or Adults (Amazon Exclusive)
Indoor only - just a word of caution - dont fly this one outside. Its affected by the sun and also majorly affected by the wind. Its really not worth it, more fun to be had inside. I actually prefer to fly indoors thesedays anyway in the comfort of my sofa!
Another thing is the battery will only last about 5mins, if you are getting less than 2mins, you should get a new battery, they are quite easy to change over, just search it on youtube.
A few things that might help you:
1. Put a small weight on the nose such as some bluetak. This will allow the chopper to move faster. It will also stop it from drifting backwards which is really annoying
2. Trim it on the ground before you take off. I like to put it on a hard surface and just spin the blades WITHOUT taking off. You can easily see if it needs to be trimmed. Simple turn the wheel until it doesnt spin anymore. Easier to do this on the ground before take off
3. Beginners LISTEN up. Make very small movements on the throttle when you are learning. Your wife / girlfriend / mother / flatmate can thank me later for saving you a few scratches of paint off the roof
4. Battery charging is crucial. Leave it 10mins to cool down when flat, then charge it up for about 45mins and take it off the charger.
5. Never overdischarge a battery. When it wont take off anymore, dont keep trying to fly it because you are wrecking the battery by discharging it too far.
6. Having somewhere to practice your landings will advance your flying quickly. Here is a link to the hoops and helipad.
Take this from an experience flier - you wont find a better value helicopter around.