I did a test by using my Shark (that is beginning to have problems) the night before. I have 3 shedding animals. Filled the canister. Next day, used the Sirena. Wow! Nasty water and a huge amount of fur. The only issues I have is disconnecting the (dirty) water reservoir without spilling and then connecting the top part into the stand for storage (without the tank).
My rottweiler lives to be brushed but not vacuumed. When I attached the power head to my cabin she came and ladies down in front of it and let me vacuum her for over 30 minutes. It is a very peaceful noise and does not stress her out.
I have used the turbo pet hair brush on sofas and chairs and it works great! It also works really well on our stairs.
Excluding recertified Sirena vacuums and products on sale.