I have a Hennessy Safari with which I am most pleased. I used to have an Expedition, but the extra room in the Safari trumped the lighter weight since I don't have to carry it on my back.
If you want to keep on open mind about hammocks I suggest you compare in these areas:
WEIGHT/SIZE RATIO Hennessy uses thin lightweight materials, so even the bigger ones only weigh just over a kilo.
FASTENING SYSTEMS The Hennessy uses tree huggers that don't damage tree bark. The hammock is fastened to the tree huggers with a few knots
ENTRANCE/EXIT Hennessy has a Velcro opening on the bottom for easy in and out.
COMFORT Since you sleep below the centre cord on a Hennessy, it is stable and you sleep close to flat for greater comfort
Honestly, I've never camped in any other hammock. I guess you might call me hooked. That said there are a couple of downsides to hammocks in general. Some campgrounds ban them because some damage tree bark. Also some campgrounds don't have trees (you can use the Hennessy as a 'bivi' if you are stuck).