Fair to middling

"O'er Waiting Harpstrings of the Mind" is pretty good, quite fair to middling—the whole seven of the stanzas—but repetition would be certain to take the excitement out of it in the course of time.

Not a heluva good one, but fair to middlin’.

For the next five months, Knicks fans will have to watch a collection of underachievers, inexperienced players and fair-to-middling pros attempt to be respectable.