Ha ha you could have bought mine! Great tent and I've used one in Iceland...with my wife and loads of room to spare but......
You need some decent size FLAT real estate to pitch them, for one person it'll be freezing cold due to the sheer size of it and it weighs a ton.
If you're serious about coming to Iceland (with me) and you ask for advice, please don't completely disregard it.
You'll end up finding your GS is too heavy, you won't enjoy it and end up missing all the best bits and going by road, which has happened before