We all learn somewhat differently. In addition as our learning progresses we have changing needs. I had looked at Memrise A2 about a year ago and decided it was way to difficult for me. More recently I took a second look and found that now it is just right for me. I needed hearing practice, i.e., audio word recognition practice along with my requirement to constandly expand my vocabulary and Memrise is giving me exactly what I need at this time. It pays to become familiar with a variety of language learning tools in my opinion.