@Elen
I have used the Hennessy Expedition zip. If the description says "zip" it has a zip closed side entry. Otherwise it has velcro closed bottom entry. As sold here (USA) you can swap out the minimal diamond tarp for the hex tarp for an extra $25. This is enormous and gives mucho privacy and coverage. Its 12' along the ridge line, and 10' wide (3.6metres long x 3.0metres wide). Great for base camping, but heavier than the minimalist which is best for backpacking. The black mossie net is midge proof also, and easily seen through, so not much loss of view when using it. Much more view lost when you have a low set rain fly. I really advise that you try to get to the hammock forum meet that I linked. You will probably see (and be able to try) a variety of types . My conclusions, I have the Hennessy and it is very good, but I think that the WB is probably marginally better because of a) the foortbox, b) the shelf and c) ease of use of alternative suspension such as whoopie slings and straps with repelling rings. From what I have seen in vids and specs, UK Hammocks look to be just as good. Is DIY an option? as there are very good tutorials on Hammock Forums for making hammocks, suspension, and bug nets.
Just Jeff's Hiking Page
http://www.tothewoods.net/JeffsHikingPage.html
Is a great introduction to just about everything about hammocking