Since these units offer the versatility to add all the attachments and come with the power heads except the Onyx and Pisces, we have classified these units for all floors. This is a huge difference in the Miele Vacuum vs. other vacuums. A Miele purchase is a 20 year investment since parts are made for 20 years per unit. Purchasing mass merchant vacuum brands may be a mistake since lots of the manufactures stop making parts and discontinue models. This sort of vacuum buying cycle is not ecofriendly, and will end up costing you more money in the long run. Be smart purchase a Miele today!