I've used Perl as my primary programming language over 20 years and think that Perl 6 is a big improvement. I've been using 6 for new Perl software since 2012 (one 500 line program I run once a week and a few other 30 lines or less programs used one time) with good results---learning Perl 6 was hard for me---am looking forward to Perl 6 books. Thanks to all the people that made Perl 5 and 6 possible.