I am a longtime Shark consumer as their products are high quality and long lasting. 
This is the first carpet cleaner I have owned that is Shark brand and boy am I impressed. I have been using the Crevice Tool on every piece of furniture I own and it has pulled out stains and dirt that I didn't even know existed! The pet tool helps remove my 3 cat household hairballs from the carpet and furniture with ease. No stains or hairs left behind!
The cleaning solution is light and airy with no harmful chemical smells and gets rid of the tough stains I've had like juices, foods, and pet related stains. Don't hesitate on grabbing this vacuum, you won't be disappointed!