I actually aquired this particular model by default. I had to return the original purchase (2X Pet Anti,etc.) to exchange and lo, the store had NONE. The manager then showed me what was available, and I saw this model and said OK, as long as its a Bissell. Well I must say that I have NEVER experienced a clean like this! I used it the day after I purchased it, and was amazed. Only one little problem: it took three days for my body to recover. **Literally. This is a most powerful Cleaner! I realize now that I must pay someone to do the carpet as I did today, but it is worth it (and keeps my Dr. happy)! It really lives up to its name. I use the Pet, Odor Control and Allergen cleaners in my machine, and the outcome is awesome; the machine addresses all areas that I need. I know it for sure when the dirty tank is full. The entire house smells wonderful, and we haven't done the final three yet.
Thanks Bissell for a job well done,
Queen **I just happen to be a veteran with disabilities,some not reversable: however I like to retain & maintain my INDEPENDENCE :-)