I must say that I remain amazed by the quality of cleaning this little robot. I only have large picture windows, clean up is an ordeal. they get dirty very quickly with dust, salt spray of the sea. I tried several solutions, even the steam cleaner were ineffective. The only elbow grease based solution wasnt perfect either. I tried this little robot without even passing a look "before sponge to clean the bigger, the result is really very effective. This afternoon, I watched the windows cleaned yesterday south through the sun , there are a few very slight traces but for now this is what I found better. It's a little noisy this is true, a little like a hair dryer. it adheres well, no need to spend three hours cleaning the rooms. the attachment system in case of fall is so so, improve. there is a small uncleaned border. the second pass with just a little wet pad gives a perfect result. to strongly recommend for large areas or storefront +++
