On Vango tents:
I have two Vango tents. One is an old Hydra 200 - heavy but bombproof. The other is a newer Spirit 200+ There is a noticeable quality difference between the two tents, with the Spirit being much shoddier.
The Hydra worked great from day one.
On the Spirit, the guylines were too slick for the line tensioners, and wouldn't hold tension. They got fuzzy very easily. I swapped them out for better quality lines and tensioners. The clips holding the inner to the outer are very weak, and I've replaced most of them with simple cord loops. I now have a serviceable tent. I sent Vango an email outlining all the problems with the tent and got back an email that was polite enough but didn't offer any remedy. In fairness, when the next years models were released, all those issues were addressed, but I was still stuck with my bodge-job of a tent.
On the other hand, I agree that single-skin tents will always be problematic in these islands. And smaller tents are more prone to condensation too. I also have a Hilleberg Akto, which is an awesome lightweight tent, but has occasional condensation problems. When this happens I just light my candle lantern - the tent dries up in 20 minutes or so.