Not a fan of basals in general. RS has some cute stories, and some I don't like. I don't like that the themes don't always correlate with our science/ soc. st. Like right now I'm teaching Thansgiving, and a story about an armadillo. I only teach 1/2 day, so that is a big negative for me.
You will get a lot of guided reading books, so that is a plus.
Assessments are not great, we use some of them.
I think the newer version has a lot of technology videos for kids.
Reading strategy instruction is not good either.
It assumes kids have had preschool, so they do nothing with nursery rhymes, and letter instruction is not good for your lower kids.
I do a lot of supplementing, but I would with any basal. Glad my principal let's me
Not familiar with other series.