This model should be probably be printed with supports. I used tree supports and they work well. It can be printed with out supports, but dots tend to sag just a bit. I found that the dots on the side sometimes need to be cleaned up just a bit. I have done this with a 1x1 brick, snapping it to the dot that needs to be cleaned up and rotating it several times.

There are printable bricks so you can print your own bricks in any color you wish. There are also corner bricks that will allow you to have corners that are flush if you put bricks on all sides.

The inside of the holder box is 98.675 x 43.875mm. There is a smaller one as well that is 90.7 x 34.875mm. Some business cards might fit in the smaller box.