There's a lot to like about Reason. The built-in instruments really hit a sweet spot between flexibility and ease of use. And the semi-modular design makes it easy to do things that are hard or downright impossible in more conventional DAWs. And there are some great rack extensions like Nostromo that don't really have any direct counterparts in the VST world.

I also like the way that the blocks method of arranging a song works.

Reason also has some serious shortcomings though like a very basic piano roll and, at least lately, very bad performance. I'm not sure what happened there because it used to be the most efficient DAW on my system by far but now it uses 2-3x the CPU that Logic or Live do, at least on my machine.