although I'm still using Perl 5 most of the time, almost daily in fact (at least on working days), I started to learn Perl 6 a few years ago. At the very beginning, I was also somewhat upset by syntax changes such as some you describe, but once you get into it, you figure out that there are very good reasons for that and that, at the end of the day, the Perl 6 syntax is much more consistent than Perl 5 ever was. These syntax changes really make a lot of sense.
I should add that, if you know P5, then P6 is very easy to learn, because P6 really has the same spirit as P5.
I could write much longer on this -- after all, I wrote a full book on Perl 6, which you can read online for free or buy in printed form from Amazon and other book stores (http://greenteapress.com/wp/think-perl-6/
. But, for now, I will only say that P6 is really a nice language which keeps everything nice that P5 has, and adds much more. Once you get past the few syntactical changes compared to P5 (which really does not take too much effort), you really feel at home and just enjoy it even more.