I was not sure how easy or hard it would be to clean my windows so I was hesitant in purchasing something that was a fairly large investment in cleaning products in case it went to waste.
I'm really happy that I took the plunge. The products are top notch and they were incredibly easy to use. I did half the house (inside and out) in about 10mins. Even though I'm far from a professional, the products helped me get a fantastic finish that seriously does look professional. I highly recommend you take the chance