Several people have commented that Oreck's aren't in general heavy duty vacuums. So what carpet types are Oreck's most appropriate for? I believe CR gave most of the Oreck's tested in the last several years scores of good to very good for cleaning medium pile carpeting.
Carmine has mentioned the failure of a Dyson DC07 on wool carpeting.
I would think that deep shag and berber carpeting would have special challenges different from medium pile carpeting.
The smart tyrant writes his own story to ensure that it is favorable. The lazy will repeat lines from the book without fact checking.
