Have fun, I think it’s pretty great. The translation comments in den dictionary tooltip are really helpful to get a feeling for some exception you might not have known.
Further, you might be interested in the book club: よつばと！Vol 1 Discussion Thread (Beginner's Book Club)
よつばと! is a very fun manga series using very simple Japanese.
Here is some video about it: Let's Read Manga in Japanese #Yotsubato ┃FULLY in JAPANESE - YouTube