My daughter has allergies to dust and mites, so I searched to find a vacuum cleaner to help with that. After a lot of reading and searching, I ended up with this one.
The positives:
1) It cleans incredibly well. On the bed, I don't know where it found so much dirt, hair, etc. but it was a lot. Maybe it was because I hadn't cleaned it with a vacuum for a while, but I had just put on freshly washed sheets, washed with double rinsing, and dried inside the house with a dehumidifier, and it picked up dirt or whatever it was. I was amazed.
On the carpet, even though I have an expensive vacuum with attachments specifically for carpets that really cleans well, I passed it twice on each carpet and then used this vacuum... I thought I had never cleaned them before... It picked up an excessive amount of hair, dirt, dust, and anything you can imagine.
2) The comb attachment does a very good job, and if you want, you can deactivate it for delicate fabrics.
3) The UV lamp, I don't know if it works, but considering it has so many protections, if it doesn't detect from all 3 sensors that it is on the floor, it deactivates it, so I assume it is indeed a UV lamp.
Negatives:
1) Heavy, tiresome for prolonged use.
2) Noisy.
3) The dust bin and filter fill up quickly. One trick I found is to clean them with a regular vacuum, the filter and the dust bin, because otherwise when you go to empty it, it fills the space with dust.
4) If the hair container gets full, it is difficult to remove the hair.
Overall impression:
Despite its negatives, it does an AMAZING job. It picks up things you didn't expect to be there. The most important thing is that it really helped a lot with my daughter's allergy, so even if it had more negatives, since it is designed for the purpose it is sold for, for dust and mites, it is wonderful.
It is not meant for cleaning your entire house, but for beds, sofas, and carpets, it is the way to go.
I repeat, I have a very good vacuum with many attachments for carpets, sofas, etc., but it doesn't do the job that this one does.