Shark vacuum cleaner (Halifax's)

Please read carefully before responding. This is a corded Shark vacuum cleaner that converts into a handheld. It is the shark flex meaning it folds down for storage and goes easily under furniture. Unfortunately the flex part is the problem on this. Because it folds the wires are inside and over time hairs and other debris collect around the wires and ultimately cause a blockage. The cleaner comes apart to clean but the main flex pole is long and it's hard to reach the middle. I have dogs so I feel this would be the perfect cleaner for a dog free household as it appears to be hair that starts this problem. Unblocked it has really good suction and the foot has a light on it. Converted to a handheld the issue doesn't occur but to be honest I don't want to clean my three storey house on my hand and knees. It's not a lightweight vacuum and I have cleaned it all out so it's not currently blocked. I bought this pre owned last year for £10 and I understand why it was so cheap now. Worth a go for free though. Collection only please.