Too much repitition
Lately (since hearts disappeared) DL does seem to be over-repeating - at least on the Android App. If you make a mistake in a lesson, it asks you the same questions more times (not just the one you got wrong). I have even had the same question asked in exactly the same way twice running!
OK, repetition is a good way to learn - but there are limits!
the repetition on lessons drives me mad! To the point where I've dropped down to just doing just enough to keep my streak going because I can't stand the repeated phrases! Even if they were to mix it up but still keep repetition to enforce memory (eg. 'it is two o'clock' then maybe 'it is five o'clock') it'd be much better!
I have just commented on this from another post. 3 Sentence Reviews, I think. I totally agree with what you say. I have had the same questions more than twice sometimes on the Android App. It seems also to be the very easy questions that are repeated. No related to my mistakes at all sometimes.