Just had a read of what was on the manga. Some thoughts:
Not a fan of the artstyle.
Ohana is quite clumsy and airheaded in it
Grandma is awesome though, stricter than she was in the anime.
And lol at hinting Ohana x Tooru from the very start.
Minko is the same as the Minko in the anime...
Lots of anime/manga cliches in here - like the bad looking cooking tasting good, and the denial between Ohana and Tooru.
However, it was a decent read. Agreed that anime is generally better though.