I did a lot of research about this last year, when my kids were the same age as yours. I read a lot here and other places on the web. I ended up ordering Song School Latin for my 8 year old (because he was not a fluent reader yet) and Latin For Children Primer A for my 11 year old.
We love them both. The chants/songs that go with the lessons help my children remember the Latin more proficiently. And it's not just rote memorization... the information is sticking. Which is one of my main goals in homeschooling. :D
Classical Academic Press (the company that puts out these two programs), also has a lot of go-alongs on their website. They have videos, games for the students, readers, coloring sheets for the younger kids, worksheets for the older kids, articles and tips for parents, etc.
I researched a couple other curricula, and there were various reasons I didn't choose them.
Lively Latin was too much seat work for my 8 year old. He's a boy and just could not do that much seat work. Also, I read that Lively Latin has bad customer service.
At the moment, I can't remember why I didn't choose any of the others. :001_huh: