We love our Dirt Devil, which was installed by factory. However, we do not use the attachments because, for us, they are too much of a nuisance.
Instead, we use a broom to sweep dirt towards the floor mounted suction fixture. So, that might be a consideration for where you mount your fixtures in the interior area.
In the first picture, there are two fixtures for the Dirt Devil. The only one we use is 2 by 8 inches. With your foot, you can activate vacuum and it will suck in sweepings.
For all other vacuum needs, we prefer a 120VAC handheld vacuum. We have a nice little storage area build by factory for the handheld vacuum, which is shown in the second picture.