In reply to Dirty Lion:
Yes its definitly big enough for 2 people at a push.
One thing which really helps with the waterproofing is attaching three loops to the fly sheet. Two of these go at the bottom of the fly sheet in the middle of the long edge. The third goes at the bottom of the fly sheet on the edge that doesn't have the door (if that makes sense). You can then peg the ground sheet well away from the tent interior. This gives about 30cm clearance between the outer and the inner.
Hope this helps,
Mehmet