I like the way Sonar does freeze. It was not the first to implement freeze but does it the way I prefer it.
Sonar has a buss pane that was revolutionary when Sonar first came out.
There are a lot of little things that Sonar does well that other DAWs don't do as well.
Taken as a whole for a very deep DAW Sonar is the simplest DAW to get things done in.
The support for external synths is as good as other DAWs that support external synths yet its support for soft synths is great too.
Now we have a DAW that supports VST VST 3 VSTi VSTi 3 DX DXi. It support ASIO, WDM and all Windows audio driver models. Its tightly integrated into Windows.
I really like how Sonar shows how it uses CPUs. Disk space and so on.
I really like the way Sonar scans plugins.