Hello PSUPUNguy, Thanks for writing a review and we're sorry to have learned about your disappointment. There are only a few parts that require assembly such as the casters and the handle. May we know which parts you're having difficulty with the assembly? On a different note, while a lot of users are happy with the performance of this vac, you may need a vac with a higher CFM. The higher the CFM, the more efficient it will pick up debris. This vac is rated at 64 CFM suction power. Additionally, there are several factors that can affect actual airflow, including turbulence in the hose and wands, restrictions on airflow where the cleaning tool meets the floor or other surfaces, increased resistance due to the bag filling with dirt, as well as filter loading. You may return the vac to Home Depot within the first 90 days following their return policy. If you have questions or you need assistance in finding another vac more suitable for your needs, you may call our Customer Service at 1-800-474-3443 from Monday to Friday between 8:00 AM to 5:00 PM Central Time and we'll be glad to assist you. Thanks, RIDGID