According to a Which report the Miele TT5000 is the best vacuum around. I was a Dyson fan until my Dyson packed in after 5 years of normal usage. My parent's Dyson too packed in after a similar period of time again through a normal usage pattern. I was in John Lewis about to purchase another Dyson when I came across the Miele range. I couldn't make up my mind so thought I'd ask the sales chappy. Usually these people are simply doing a job with no interest but this guy was a young student who obviously applied studying to his part time job. He pulled out a Which report from his pocket and showed me that out of 5 vacuums tested, the Dyson came a poor 5th in various measures, whilst the Miele came out top. I was sold and can happliiy say that this is a gem of a vacuum. It has great suction, is light, ergonomic and has a build quality like no other.
Hope this helps.