Sentence examples for unusable at best from inspiring English sources

I've tested a few so far and a number of the "cheap" open source models and some of the models you find at Office Depot are unusable at best.

But over the last week the service has become spotty at best, and unusable at times.

But in its simplicity, this approach is at best incomplete, and at the worst fatally unusable.

At best.

A curiosity at best.

At best periodically.

tepid at best.

Silver at best.

At best, nothing.

Verdict: Bronze at best.

Mid-table at best.