I also got a lot of value out of wanikani even without completing it.

I tried and failed several times to get started with Anki before having success with Wanikani. The key diffentiator for me was the learning step. Anki is great for remembering things you were taught or learned outside of it, but using Anki to learn new things is very much a learned skill that Wanikani holds your hand through.

I have N2 and am working on N1 now, and feel I still have a very long way to go before getting to CEFR C1. Now I only use Anki with the yomitan and takoboto integrations to quickly add any words I look up, which seems to be working well.