Only had this Dyson for a few months, but there is no question concerning the suction power.  The instructions can be obtained from the website, but being mechanically minded helps.  The only thing missing is the promise, on a call to the Dyson rep, concerning extra tools advertised on the Dyson website.  Although disappointed, the enclosed three tools are adequate for most jobs.  Yes, the machine is heavy and somewhat seemingly awkward, but a little patience and perseverance will justify the difference the Dyson Ball presents in comparison with the standard American designed- Chinese produced machines!  Time will tell its worth and value to people who have had the pleasure of the person who still has the 15 year old Dyson machine.  If there is the desire for a better machine, then the cost and weight will increase by the cost and availability in this rocket-propelled world.