I've just had a look at the site and the video. Personally, I wouldnt buy it, cheaper to buy a Zephyros 1, but then again I can be a right cheapskate when I want to be and I do not do enough hiking to may the outlay of cash. I'd rather spend the money saved on wine, beer and food.
OK its a light tent and it looks really flash but how really important is tent weight really? In the overall scheme of things (my fully loaded rucksack) I find its easy enough to carry, I don't consider my rucksack heavy, its no hardship at all.
Personally I'm a person who if using a one man tent I likes a big interiour and good headroom, thats what I prioritise first. I chose unwisely when I bought my Zephyros 1 (although it is a good tent) but I chose better when I bought my Marmot Pulsar 1. If I could choose again I'd go for a Naturehike Targa 1, a Chinese copy of the Tarptent Rainbow. On balance it looks like the Targa 1 has something superior over the Tarptent rainbow. On the opposite side to the tent entrance it has a half circle zip which allows the camper to put things outside of the sleeping bay but the gear stays within the outer tent area. Good for bits and pieces, like water bottle, wet clothes, boots possibly? I have a similar zip in my Pulsar 1 and I've always found it really useful.
At another level, the opposite to what I have just written, I'm also interested in buying a Snugpack Bivi bag. Not willing to buy a new model but just can't seem to find one. I'm willing to pay up to £100 for one. If you know of one I'll be most intersted.
I bet there are even better tents out there as well, but in the end I just couldn't summon the energy to keep comparing and contrasting them all.