Definitely, these briefs are very comfortable and it is true they feel like wearing nothing. The criticisms I make should be seen as positive.
From an appearance point of view, the front half is not cut away and is not a flattering or good look. it needs to be more 'V' shaped looking front on. The second criticism is the material is micro thin and therefore is completely revealing, (so I would not wear these to the gym! ). A double layer front panel is really needed. On that point, this would give a bit more support and for me feel better, especially during exercise.