I like that this is an open source software, meaning anyone can contribute to it as well! It's also very easy to use even if you are not familiar with R or Python programming language (I'm both).
There isn't much of anything bad about shapelet either - good documentation available online in many languages including English; great community support through Slack & GitHub issues page etc.; fast response times from developers when questions arise via Github tickets/issues pages ; niceβ¦