Form your own ideas about Mollie Sugden portraying "Ida Willis". Of course she does NOT act like Mrs. Slocombe because she isn't. If you give her a chance, you'll have a good chance at enjoying her portrayal. A 'real' Mollie Sugden fan will enjoy Ida too; whereas a Mrs. Slocombe fan might not. It's just like Patricia Routledge portraying Hyacinth Bucket [Bouquet] and Hetty Wainthropp. They are both interesting characters but Hyacinth is a funny snob whereas Hetty is a lady detective. They're different, as are Mrs. Slocombe & Ida. I really believe that you'll enjoy BOTH characters. Give them a chance; you'll be glad you did!