In reply to beermonkey: Not sure how much effect the lower quoted hydrostatic head bit has - I've used mine in some quite heavy rain and suffered none of it coming through. It may prove more significant in winter conditions (snow etc), but the tent isn't really designed to cope with that.
And the mesh inner works well, as it reduces the condensation on the inside making it more comfortable (and lighter). Ok so it may lose heat more rapidly but that just means you need a slightly warmer sleeping bag.
And the porch is quite sizeable - at least enough to comfortably cook in it whilst closed up.
For its role as a 3 season tent it is fairly well designed. I'd make no pretence about it being a winter tent, but if that's not what you're after its a fairly good option.