De opmaat series or Nederlands in gang series

Hi! I finished the Busuu course and looking to continue my self-education in Dutch. Busuu is definitely weak in some aspects which I plan to shore up with the help of LingQ to consume content and expand vocabulary, but I'd also like to keep working on grammar and exercises, something I think Busuu actually does pretty well.

I've accepted that the best materials are from Dutch publishers, and I've really honed in on these two series which come highly regarded. Is one better for self-study than the other? Does one have better online materials? De opmaat has 3 books going up to B2 ("De finale"), while Nederlands in gang has four going up to C1 ("Nederlands naar perfectie"), so that might be a point in favor of Nederlands in gang.

And while I'm already paying for overseas shipping I plan to pick up Zichtbaar Nederlands because it just looks so good as a reference up to B1.

Any help in deciding between these series is much appreciated. Thanks!