This is an additional review to a more general one already done.
Windows: The outward design is light and pleasing. Having had them 'installed' for 6 months they are actually badly desgned and poorly constructed. The 'latch' setting is a hit-and-miss affair that does not use the side bolts, but a single sliding catch in the centre below the handle. This is often impossible to set. You can see the side bolts slotting into free air from the outside. Now, it may be just ours, but a company as 'professional' as Anglian should be able to standardise production, but the handles rub the edge of the widow and will inevitably wear a groove, and catch a hand or two in the process.
Also, as other maintenance is carried out at high level we are finding the wood-grain finish chipped off during installation. It does not seem to be anywhere near as sound as our conservatory, from another company (MUCH cheaper).
Front Door: Again after six months use. The handle has to be lifted whilst locking, so something isn't right. Also door has dropped, sagged, on the lock side so now wearing the draft strip and almost catching the frame.
It's up to you, but I would look somewhere else for better design, harder wearing, better functionality, and certainly far cheaper.