IMO, I always hated terrain and interiors, especially the latter. I never felt like bricks and interiors meshed well visually.
The majority of maps that used interiors were ill-aligned with the brick grid, so it always bugged me when you couldn't completely cover an area of the Bedroom or bricks would kind of float, my BL_Construct map was unintentionally perfectly aligned with the brick grid from the start, so i decided to keep it as aligned as possible while making the rest of the interior, i wouldn't say BL_Construct (and even BL_Flatgrass) were the only maps with an interior that was aligned to the brick grid, but at the same time, i don't know of any other maps that were like that
I was alright with the terrain, my only gripe with it was building on areas that were sloped or bumpy, your bricks would be halfway off the ground because they didn't re-align (and if they did, that'd just make things even harder, actually)
Poll