I just bought a powergroom pet bagless 4104 series.I have two dogs and two cats.Over the years i have owned many vacuums,and was pleased with most.But this vacuum is the king of all Iam more than pleased.It is easy to put together,works wonderfully,and is light weight.I would highly recommend this product to anyone who is looking for a good vac at a good price,with or without pets.I thought my carpets where clean until I used this baby and having back problems found it easy to carry up and down stairs without strain.