Any experience with NapSack Hammock?

Came across this UK based (cottage?) vendor, don't really know if their stuff is made in the UK or China but their hammocks seem to have a decent size 320cm in length (about 10.5 feet) and ranging from 135cm (53inch) in width for the small version,170cm (67inch) for Medium, 200cm (78.7inch) for the Large. Prices seem ok to me and I like that they offer a fronkey style bugnet.
They seem to only offer 1 tarp, a winter tarp with doors that has zippers. I don't think I would like zippers on my tarp but that may just be me.