I think this shag nozzle could be improved. Somehow it has a little more suction and not directly under the connection. Other than that, this little attachment does a pretty good job. It takes a bit of work, but I have a feeling it's dealing with a shaggy carpet. I've found that quick, repetitive motions in the shape of a V or W work great for plucking pet hair. I hooked it up to my ShopVac that I use on my hardwood floors and it works great. I've used it with and without extensions.