I also own an XL21.. After paying 699.00 for it 7 years ago I find that the supposedly guaranty is NOT a guaranty honored by all stores.. One store says they replace one thing while another says thats not something that in your guaranty.. WHO runs the show?.. individual store owners?.. Another thing.. try using this vaccum after 6 years and then tell me that it works the way it did initially even with the "yearly free service" which is NOT free.. I don t plan to keep this thing for 21 years.. I would have been better off... read full review »