I'll try to be brief.
Bought because I want the option to have low key podcasts with the option to record two voices and a phone at the same time. I also bought because I record my own voice for short audio doc pieces and sound art.
For voice recording- this simplifies my workflow. Yes I can do everything in a DAW, but when I'm recording my voice I often want something that sounds good on recording- to avoid work later in the DAW. A bonus is that my voice sounds good while recording- which helps the performance.
The preamps sound, I use it with an SE Dynacaster DCM 8 and 3, and a rode procaster, plus a couple of tbone condenser mics. Don't need an additional premap for the dynamic mics
Processing is quick and easy. The presets sound good for the dynacaster and procaster, but they are easy to tweak.
It's also very convenient that I can record directly to a card in the device.
Lastly- for my voiceover I don't need to supply an unprocessed version- because my voiceovers are for my own audio doc work, but it's very simple to do a quick second take without processing, if required