The anime follows the manga pretty closely, though those who complained about the infamous food episode (Episode one.) May be a bit happier. As it's a 4 panel manga, the chapters are pretty short, and it's pretty fun to, if nothing else, see the characters expressions.
Of course, if you are interested in this manga because a friend told you about it, they probably mentioned that it's a spice of life, so don't expect too much action.
And, if you liked Azumanga Daioh, and if you've seen some reasonably popular anime series (Haruhi, Fumoffu...) you might like this.