Personalization cookies appeared closely after application cookies. These are cookies that store user specific characteristics for repeated use. For example they may record your language selection, items you like to see on dashboard, browser type to access web services and other regional information.
For XcooBee geolocation information falls also under this category of cookies. For example, a cookie that stores from where the user is generally accessing the site or service.
In general, a site should be able to operate and provide services to you without the use of personalization. If you wish for the site to remember your selection and improve the convenience it is generally recommended that you allow these types of cookies.