Bests & Worsts Reviews from Amazon

I've owned a lot of vacuum cleaners, and they've all had some fatal flaw that made me hate them pretty quickly. So far I don't hate this one. And that's pretty amazing. So far, the good things about this vac are: The head fits under things, so I don't have to switch to a hand-held. I love cordless. This is my first cordless vac and it's so nice to move from room to room without unplugging and plugging constantly. It's lightweight. The suction is good. When it gets clogged, it's easy to unclog. I've never had a vacuum that didn't clog once in a while. It happens. Being able to find and remove the clog easily is great. It holds a charge long enough. So far I haven't run it until it's dead, so I'm not sure how long it actually lasts. The filter is easy to rinse clean. The not so good: The canister is fairly small. I'm used to a bag vacuum that held a lot more. On the other hand, it's super-easy to empty, and I'm not spending money on bags that just get thrown away. This isn't a deal breaker, and once I get used to the canister size, I'll know how often I need to empty it. The filter needs to dry completely before using again. That's ... about 24 hours. I guess it depends on how humid or dry it is in your area, but no matter what, it's not fast and I don't see any way to hurry it. That's a long wait if you're half-done cleaning and you get the filter error. The puzzling: I thought it would be smart to order an extra filter so I never have to be concerned about the filter waiting to dry. I couldn't find it on Amazon, so I went to the Dyson site and it says its not sold online because you need an engineer to install it. Seriously? Consumers can remove the filter and rinse it and replace it, but then you need an engineer of some sort to install a replacement? What sort of engineer, and where do I find one? I'm guessing that once this vac isn't so new, the filters will appear from third-party sellers or there will be knock-offs available from other companies.