Functionally, there was never any problems and also the battery life is very long, even if the keypad is always on. The stop of the short travel is pleasant and fairly quiet, not so clattering as with many larger, often very cheap-looking plastic full keyboards that are there in the market. Very positive is the stable back metal. Noticed was, however, that the transmission and reception performance is not probably the best. Even a desk top with cable duct in the spark gap made impossible the use - the distance to the ground resting PC apparently too large. Remedy I have directly with a short USB extension cable, the end of which lies with the Nano-receiver directly under the tabletop. Since then I have no problems with reception and it swallowed even with fast typing any letters etc.
The last models produced there seems to be so that you have increased the two rubber feet slightly, so that the back is no longer beating on the table, when you press a little harder on the spacebar. On my first model I had as yet to stick a buffer in the middle. Unfortunately, the quality of workmanship of these keyboards is a bit mixed, that is, the production quality apparently wavering. Some copy has not punched properly at the factory scratched letters, others are the keys and have burrs on the edge to be found or in the interstices of unsightly adhesive residue / fingerprints, which can not be removed. It may also happen that one or the other button sits wrong, comparatively much play, creaks or squeaks. The copy, which I used now is not to complain about in this regard, has this factory minor scratches on the bottom.
All in all, it is nonetheless a very chic, compact and useful keyboard when you caught a well-made copy. In my opinion, the manufacturer should provide for a slightly higher or consistent production quality and ensure necessary increase the selling price moderate, because actually are design and feel many other keyboards vastly superior.
