anyway, just to share with everyone, i am personally using delphin, my mom is using rainbow, and my aunt just bought herself a kirby. it's kinda funny how everyone is comparing their own vacuums with another. just buy the one which you like, as simple as that. no need to argue here and there. all 3 of us are using different brands, we have never regretted our decision to date. to each their preference. maybe just get the one that can offer the highest discount, because to me, they are all so similar! just get the cheaper one and you'll probably be happiest!