The Greenhouse is a PITA to put up and down, esp for a weekend, but I like to have the space to stand up and have room to put stuff. If it rains, plenty of room to cook and eat inside. I also need a lot of room for our Queensize airbed.
Its ideal for longer trips, but takes about 30-45mins to erect and pack up, which is quite long. Obviously, with Mrs TheBoy insisting on taking the contents of our home, its takes much longer to get it all set up inside 
What is the Anderson Shelter Jaime, been pondering something similar myself?
I think its Base Camp 5
Came from
http://www.centrecaravans.com/tents_clearance.htm, £185 about 4 years ago.
Being a tunnel tent, I don't think its great in very high winds, though never had to put up all the 10,000,000 guy ropes (put up enough for Ljay to trip over though).
Its been great for a cheap tent - if it ripped tomorrow, I've had my money's worth. Its probably getting to stage where the seams could do with a quick spray - meant to last year, but it was too wet.
Never much trouble with condensation - little bit on the plastic windows in the morning - but we tend to open the door when cooking inside.