I did lots of research before purchasing my last vacuum. Hearing that Dyson was so good I started there but got very worried when hearing the quality issues in the newer models. So I searched more about the Miele and liked what I saw so I went to a store to had them and tried it out and I thought it was great! The suction was just as good as the Dyson, the beater bar doesn't attack my carpet like the Dyson is said to do and I like that this has the ability to filter the air if needed. The filter is expensive as well but we have lots of allergies here so its important to us. The only thing I do not like about it is the bags are expensive but the bags get packed so tightly that I do not have to change the bags nearly as frequently as my hoover upright that I had. Maneuverability This is the Best part of this machine! It can almost dance with you as you vacuum! It took some time to figure out how to dance with it but overtime you discover how easy it is to get around just about anything because of the swivel head! Ease of Maintenance I have had this for over a year and haven't had any problem with maintenance. Its been a solid machine. The only thing I have changed so far has been the bag. Suction Performance The suction is excellent as well. It has the ability to had a light suction for curtains etc. but also a deeper suction for low pile carpets and hard floors. I was told to keep it on the deeper suction because it just picks up so much but with working with it the lighter suction does come in handy in certain situations. When we moved into a rental townhome I took the Miele to it and wow did it pick up all kinds of stuff. After a few times of a good vacuum though I felt as if the floor was finally deep cleaned. Versatility All the attachments are on the back of the machine and its not super heavy so steps are easy to do. The hose attachments stretch quite far so that makes things easy too. We have a 2 story living room and windows at the second story level. The vacuum is able to stay on the floor and the hose can stretch all the way up to the window sill so I can clean up there. Design The design is good, the only flaw I see is sometimes the attachments have a problem attaching to the back if not put in exactly correctly. Durability Haven't had a problem yet!