“He learned up the sugya so lomdish that only the best bochrim could follow.” (Weiser)

“This blatt is too lomdish to learn without a chavrusa.” (Weiser)

“He's too lomdish just to teach him how to drive without explaining the mechanics involved.” (Weiser)

"Rabbi Davidowitz is well known in the Torah world for his deep, sophisticated and lomdish shiurim." (source)