Sentence examples for both are impeccable from inspiring English sources

His facial expressions and the timing between them both are impeccable.

The Kumamoto oysters needed no explaining, and neither did the truffle mignonette that came alongside; both were impeccable.

However, there is a caveat, which is that on both counts your manners are impeccable, your communication style is consistently thoughtful and that you are authentic.

Both the service and food are impeccable.

Desserts are impeccable.

The manners are impeccable.

Pelham's credentials are impeccable.

And the performances are impeccable.

The song choices are impeccable.

Service and presentation are impeccable.

They are impeccable.