While the restaurant has always been popular due to the high <u>caliber</u>of its service, the replacement of its old head chef was soon followed by a noticeable improvement in its food as well.
<h3>What is the meaning of caliber?</h3>
Caliber refers to the rank or rating of something. When speaking in terms of the quality of service rendered by the restaurant, we can refer to its ranking as high.
Thus a proper adjective to insert in the blank will be high caliber.
