Level 60 in (only) 4 years. No, I didn’t think it would take this long.
After job, kids and other responsibilities doing wanikani was a low-priority activity which suffered numerous forced long suspensions. At one point my review queue got over 1000. Things that helped: vacation mode, limiting lessons to 10/day, forcing myself to respond within a few seconds to each item rather than straining a long time to remember. Fail fast and keep going.
At the very beginning I looked forward to reading Japanese soon. I found I was able to painfully work through NHK easy around level 30, but did not become relatively comfortable reading juvenile (e.g. 6th grade level science & history) material until around level 50. I look forward to migrating my study time away from WK to reading and listening.