We're at the end of a very long chain and our influence is marginal at best.

Even with a converter, picture quality was marginal at best.

Control was found to be marginal at best, but short flights were made regularly.

If there's any difference in the standards then it's marginal at best.

Even then, the picture quality was marginal at best.

Even with one, the picture quality was marginal at best.

It's tough, messy work, and the rewards are marginal at best.

Danvers knew that his academic grades had been marginal, at best.

A. Color does cost us money on news-only pages but it is marginal at best.

If you've got a drinkin' problem, it's marginal at best.