I have very long and hard about whether I should dare to clean the sensor itself with my Nikon D7100. After some back and forth and a lot of research on the Internet, I then decided to use these swaps and carried out cleaning it. On the manufacturer's website, these swaps are recommended from the "orange series" for cameras with no low-pass filter such as the Nikon D7100. I can only say that I make the decision, the sensor cleaning itself by no means regret, the issue was taken care of within a few seconds, as shown in the description and some videos on YouTube, simply moisten the swap with some of the cleaning fluid, according to the instructions on the Sensor wipe and you're done. The result was excellent in my case, I have to clean needs only a swap, but certainly depends on the degree and type of contamination.
What seems a little negative at first glance is the rather high price, but also put into perspective this again when you consider how much effort you have to run to make clean the sensor in a specialist workshop.
I would buy the swaps over again because it is quick and easy and provides a very good result.
If you have questions that are not answered in this review, so ask for simple, I will answer your questions within my means.