Most allies are pretty useless, but if you find a Heavy Weapons Maid she's worth feeding cookies to every time she gets downed, to get her back up. It's not a lot of damage but it's a lot of fun. Presently though, cookies only come from shops and don't seem much worth it. There are lots of meals on tables...
Regen might be tough to tune between overpowered and having to pass the time with 't'. How about a "healing massage" as a dialogue option, with some stat cost?