I have Flycam flyboy II and Flycam Nano. Both are cheap and quality is best. I use these stabilizers for my business. It helps in stabilizing shots and providing professional quality video. These are very well designed and are made with quality materials. Product is solid and has unlimited uses.
flyboy II video
In April 2013, this gadget would have cost about $10,000.
Now it's on offer at $2,695.00 (£2,040 or thereabouts, plus import duty, VAT or whatever taxes are levied today).
I think it's incredible that the price has dropped so much. It's still too expensive for me and might be a bit too heavy if held for long periods of time. However, it would be excellent for flying displays at somewhere like Duxford. I live in hope....