Very loud, functional, lots of nice little attachments for various cleaning chores.I've had this for a few years now, and I still use it, and still love it. In addition to being used as a vacuum, you can also put the attachments on the other end, and use it as a blower when dusting electronics. As it's a datavac, it's ESD shielded and the attachments it ships with are perfect. There are some additional attachments which you can easily find on Amazon for tighter/harder to reach places, that aren't as good of quality as the originals, but still work OK. The filters aren't too expensive either, which is a huge plus considering how much I use this. The warranty is pretty good, though I haven't had to use it. I will say though, this vacuum, like all other vacuums, can be a bit on the loud side, so be aware when using in small/enclosed spaces. Definitely recommended for anyone who regularly buys compressed air, or needs to clear dusty electronics. I use this on my computers, laptops, entertainment center, TV, projector and even in my car (as it's the perfect size for that too). I'm not a shill, but I do genuinely love this product.