I also question why they felt the need to have all new windows and a new front door. I know they wanted the dark grey/black frames so they wanted to match them throughout, but the windows they had looked absolutely fine and quite new. I also preferred the look of the front of the house before the work. It was really attractive and timeless whereas that heavy black and white look and very modern front door will not age well.
I know we are all in a sense nit picking here as both the designs were lovely, but I keep coming back in my mind to the fact that they've spend near £150k and have a lovely house but they don't have any extra rooms
Well they now have three double bedrooms and an en-suite plus a more usable downstair loo and utility/pantry whereas previously they had 2 doubles and a tiny boxroom, no ensuite, a useless downstairs loo and no pantry so it is much better, even if not much bigger.
But I agree, in terms of space you could perhaps have added more value with a loft conversion using the box room to house a staircase and getting 2 bedrooms and one bathroom upstairs.
The space used to get double height rooms and mezzanines is glamorous but not hugely useful or practical. They often seem to focus on adding lots of light and giving the illusion of more space instead of just giving them more actual space!