I'm usually a fan of original manufacturer bags, but recently came across a third party bag that peaked my interest. I bought a windsor sensor S2 vacuum and saw this third party bag that claimed better airflow and withstand the rigors of commercial cleaning. I ordered them from Hepa-Bag.com. I haven't used them yet but they sure do feel better than sebo bags. The plastic holder seems like better plastic and the bag thickness while not extremely thick like say a miele bag or tacony hepa bag is better feeling than sebo original bags. Looking forward to testing out these bags in the next few weeks. Anyone have any luck with decent third party bags.