In reply to Tigger:
I have and like a laser competition. It's a single transverse pole, plus two short vertical poles at the ends. I can usually adjust the airflow to avoid condensation, and the inner is sufficiently water repellent to keep an occasional drip of condensation out. I can get my kit in with me, and I like that there is both a little space inside the inner for dry kit, and space in the porch for wet kit. The pegs look like paperclips but actually hold well in most terrain, larger ones might be good in some soil types. With the pole cover fitted and all the guys out, I've been fine in fairly substantial winds, it does make a lot of noise though. Once, in very strong winds in Coire Domhain (>50mph, I would guess) it bent downwards so that the the inner touched my face, though that is still preferable to breaking.
I'm not sure I would consider it a true 4 season tent though, I'd prefer to have something tougher up high in winter. That said, Steve Perry used one, or something very similar, for his winter Munro round, so he must have been confident in it.
I have also heard great things about Hillebergs.
Edited to add: I've had a look and it seems Steve Perry used a laserlite, which I think evolved into the laser comp with few changes. Minimum weight advertised was 865g when I bought mine, but with the pole cover (which you want unless it's a calm summer day) and bag it's just under 1Kg.
Post edited at 23:44