Product review (4 stars): Does the job
If you've bought in to the air-o-swiss family you know they make solid products. They perform well, hold up, and are designed nicely. They're also a bit of a pain in the ass to maintain. I haven't had a humidifier yet that doesn't get a nasty mineral crust here and there and the AOS brand is no different. This product does a pretty good job of descaling. You still have to apply a little elbow grease and I haven't decided that this stuff is any better than a little scrubbing and some other products, but it's pretty simple to use and, like I said, it does the job.