Design: simply chic! The black fabric looks great, the logo represents sewn fitbag again is a beautiful Kobtrast.
Processing: Top notch! One notices immediately that you hold a product "made in Germany" in his hand. High-quality materials (both black fabric exterior, as well as microfiber interior) and perfect craftsmanship really enjoy. Also, I can not have a negative odor or similar notice.
Fit: The fit is perfect. The bag really clings to the device super. Nevertheless, the Rausholen the device is not a problem. I had a little concern that the case could be too tight and you have to almost use force to get to the S4 before buying. But none: A little push from below and from above put the S4 and it glides wonderfully from his pocket.
Cleaning by micro fiber: Here I was very skeptical and do not expect miracles. All thing I'm surprised: It actually works surprisingly well. If you again sweeps before Rausholen on the pocket, the S4 really appears almost without fingerprints.
Functionality: One was me with my protection for the S4 important: I wanted, when I'm working with the device, just the original S4 have in hand. That's why I wanted no protective cases or leather cases. This is of course not a problem with the fitbag.
One downside, of course, that one is not as fast on the device, as you simply has yet to pull out of his pocket. But as described above is not really a problem.
This was now my first impressions, the durability I can for the short time say anything yet. However, I'm as little worried.
In conclusion: Unrestricted buy recommendation, the money is the fitbag definitely worth!
UPDATE 20.05.2013: Today, the S4 is the first time I fell down (height 1.5 m on paved ground). Fortunately, it was in the FitBag. The smartphone has gotten garnix that FitBag was bissl abzustauben dirty but easy. Everything is still as good as new! Am still super happy.