U816 Gyro UFO U816 Gyro UFO

Pros: Wanted a smaller Quad for the office. I got in trouble for flying my large one. The controls are a little slow in MODE 1 but still fun to fly. MODE 2 for advanced user. Good battery time.

Cons: You will need extra props. They will break after a few crashes. The directions are written in ENGRISH, very funny to read.

Other Thoughts: Find a room with large open space and high ceiling.

Pros: This is a Birthday present for grandson,Hasnot been used yet Birthday 15 Feb. Will let you know what HE thinks after he trys it out

Cons: OK so far!

Pros: Easy to start using, sturdy, long flight time 7 minutes per battery, stable. Good value.

Cons: Documentation a bit lean, but sufficient to get started.

Pros: I've been into RC helis and quads for about 2 yrs. This is a GREAT rc - its small and durable but also advanced enough that you can have some fun. Some of the cheap 'gyro' helis are fun but you get bored after awhile. You have full 4 channel control and its quite responsive. Comes with 2 Lipo batt and charger surprisingly.

Cons: None - for the price I paid it compares to the QR ladybug at $100

Pros: Cheap
Stable
FAST!
Virtually indestructable
Sounds like a large bumble-bee - not at all mechanical
Two batteries
Extra blades (haven't needed them yet)

Cons: Not much lifting capacity - forget about lifting any key fob camera (unless it weighs less than 10g)
Hard to make very delicate indoor maneuvers
Difficult to get it to stay at a specific height - seems to either be climbing or descending.

Other Thoughts: I got this when it was on a shell shocker deal for about half the current price. It's my first try at a quad-copter. I've had other small co-axial helicopters, and even ventured into a 6-ch Walkera mini 3D-capable heli (though that was defective right out the box). Out of all of them, this one has been the most thrilling, and most fun!
The biggest hazard is getting it on a neighbors roof, or stuck in a tree. This guy will fly so high, you can't even tell which way it's facing. In mode 2 (expert mode), the forward motion will blast through any wind. I'd bed this thing hits 50mph in a straight shot if you let it.
All my neighbors are getting one (for their kids, they say... sure!).
I've slammed it into every vertical and horizontal (ground) structure there is, and without fail, it's good to go. No damage yet.
Indoors is fun, but it limits the fun you can have. Also, it creates quite a bit of it's own rotor-wash, so flying it in small spaces, or trying to land on a precise spot is more luck than skill.
Because it does not seem to "lock" at a given height, it requires constant input on the throttle to maintain a specific level. With some practice, this is no issue - but for beginners or any "hands off" flying, it isn't ideal.
Still, given it's robustness, I'd have no concerns letting my 10yo niece fly it.
If you're considering dabbling in flying R/C toys, this is the one to get - even as a first time flyer. It simply goes where you want it to (and in a hurry!), and flies strong.

Batteries take about 30-45 min to charge with a standard USB wall charger. The charger platform allows two batteries to be charged simultaneously - which is good if you have a third (I do). Flying time is around 5-10 minutes depending on how aggressive you fly.

I did manage to attach my key fob HD camera to it - though I had to take the electronics out of the plastic housing so it would be light enough for the U816. Some double-stick tape, and I was able to get about 200' above my house, getting a great view of my neighborhood. The vibration in the video makes it all but useless - so I have to come up with a better way to soften the mount.
If this ever goes on sale (or if I lose/break this one) I will certainly buy more.
And, any future flying R/C toys will likely all be some form of this quad-copter design.