The Deluge is one of the best devices I have ever owned. I used to play with individual software synthesizers for a while and also tried to connect them to DAWs but it never clicked. Playing with a synth was always really fun but not so putting it all together.
The Deluge freed me from my desktop, from endless screen time and it allows me to create. It may not be perfect and it may not be perfectly DAWless solution for many because of some missing features like mastering and compression. But for me as a hobby where I just waste time on making crappy electronic music of which 95% will never reach the ears of anyone else (besides my poor wife) it is perfect.
Of course it can also be used by more serious musicians. But for my it enables a unique way of playing with music which I have never experienced anywhere else. And it finally is a DAW which I can (almost) 100% understand.