I just got a HH Explorer Deluxe Asym zip, and ENO single for my 9yo son, and a cheapo from DX.com for my 7yo son.
We went on a hike over the weekend, and they love their hammocks. It is still a bit cold for an overnight, but that will be soon for sure. My 5yo daughter is upset that she did not get a hammock because she loved hanging out with her brothers, so I have ordered another cheapo from DX. I can't wait for the camping to begin.
I have to get a few bug nets, and an ENO double for me for at work lunch time naps