Wow, that's a lot of errors. Looks like I need to zoom in tighter on my drawings to ensure my lines are straight. I just assumed that they snapped into place in a straight line, but apparently not.
Lots of good info in here TIG, I'll to go through it this week and make sure I've digested it fully. I think an actual class might help getting the basics done. At this point I've been just drawing lines and connecting them to create the walls.