I bought this vacuum at Canadian Tire after testing it at a friends while pet sitting for 5 weeks. Great vacuum and I loved it locked into and upright position so I purchased it. I've had it for less than 2 months and it no longer locks. We've tried tightening the screws with no success. I have to set it down whenever I clean, and it's not a light vacuum. For this price we shouldn't be having issues this quickly.