Well, as Ardour's the only DAW i've paid for and you saved me from making a fool of myself countering all the things said above allow me to step in and say.
I really love ardour, thank you for all the hard work to the creator and devs that have worked hard making an amazing piece of open source software I obnoxiously like to point out every time people complain about a lack of professional quality open source tools.
I'm not going to talk about how much I like Ardour because I feel guilty for not having donated yet.