tkmcc is correct, the other big area that people typically want is the ability to easily tune their search results. For example, you might want to give more weighting (or boost it higher in the search results) to an item if the search text is found product name then if you find it is in the product description. Or perhaps boost a result based on the proximity (geo-location) of the item in relation to the user.

Full disclosure, I am a Program Manager on the Azure Search team.