I had a near 1000 day streak when I had a medical procedure and was using some heavy medication. In this time, I lost my streak by 1-2 minutes. Ever since, I quit. It felt like a choir, so I was happy it was over. That said, it allowed me to learn a lot of Spanish. I also found out Spanish is a relatively easy language (while I always detested French as I found it very difficult). A while after I quit (my partner still plays it) they added annoying ads and subscription.