I've been trying to decide whether the HUD-mini or the Fiio E17 would be better for my needs. There are tons of reviews for the E17 understandably since it was released a while. However, is it me or does it seem unusual that there are so little reviews for the HUD-mini so far? I don't have experience with the timeline for these newly released products, but headfonia's review and project86's impressions seem to be the only feedback I can find.
If you are purely working off a desktop and have a seperate amp to drive any power-hungry headphones you have, I think the HUD-Mini is good.
E17 is great if you need portability as you can match it with any devices.
For resale, I would think the E17 will move faster than the HUD-mini.