The best way to check how good the quality of finish of a developer will be is by looking at their previous finished properties online.
There will almost always be a finished property for sale on Rightmove or Zoopla or up for rent where you can check the images of the finished project. Alternatively, ask a member of staff at Baron & Cabot for internal images or videos of previous properties.
Developers will very rarely change the quality of finish if it is the same contractor being used. As the developer will get discounts on volumes of materials bought, if they tend to do a higher quality finish, this will generally not change as their suppliers will still be supplying the same quality fittings.