fair to middling
US /ˈfer tə ˈmɪd.lɪŋ/
UK /ˈfer tə ˈmɪd.lɪŋ/

1.
regular, mediocre
of only average quality; not very good but not very bad
:
•
His performance in the play was only fair to middling.
Su actuación en la obra fue solo regular.
•
The restaurant food was fair to middling, nothing special.
La comida del restaurante era regular, nada especial.