In the twenty-fixe years that I've been driving, I haven't given much thought at all to windshield wiper blades unless there was a problem with mine. Either they worked, or they didn't. When they started peeling away from the wiper I would have them replaced, usually during an oil change or I would have one of the helpful gentleman at the auto parts store install them for me. I never had to do this myself.When I was offered the Bosch 22B ICON Wiper Blade, 22" to review, I thought this was an opportunity to see what difference, if any, a better windshield wiper blade made in comparison to the cheap blades I used in the past. I also realized that this was an opportunity to see how easy it was to change the blades myself in order to rate the installation process for this review.I dug out the trusty manual for my 2005 Chevrolet Impala and saw what looked to be very simple instructions for replacing the blades, which bolstered my confidence. I also verified that my car used the same size blade on both sides of the windshield - apparently some cars use two different sizes. I ordered both the Bosch 22B ICON Wiper Blade, 22" and its counterpart, theBosch 22A ICON Wiper Blade, 22" (Pack of 1).When the Bosch blades arrived, I scrutinized them side by side. Although they have different part numbers, I honestly cannot tell a difference, so I'm not sure why they have two different part numbers. They seem to be interchangeable.I then began the task of removing the old blades from my car. Having never even watched this procedure being performed before, I was at a bit of a loss when actually attempting to do it. Although the instructions in the car manual seemed clear enough, they really didn't describe the procedure well. I finally managed to remove them after watching a video on the web showing how to remove them. As it turns out, Chevy's idea of the `down' direction and mine are slightly different.Once the old blades were gone, it was time to install the Bosch blades. The instructions on the Bosch package were mostly OK, but it wasn't quite clear enough that these blades had a latch that had to be popped open before I could attach them to my wipers. Once I figured that out, the installation was easy. My old blades don't have that little latch, and I have to say that it makes me feel like the blades are just a bit more securely attached than the old ones.Since I installed these blades a couple of months ago, we've had quite a lot of rain and several storms in our area. I even got caught in a thunderstorm complete with tornado warnings and golf-ball sized hail on the way home from work a few weeks ago and these Bosch wipers did an excellent job considering the weather. I do believe that they are much better than the old cheap blades they replaced. Those blades were only a month old, but they left a slight streak when they wiped. The Bosch blades wipe the surface completely clear, making for an unimpaired view of the road.When these need to be replaced, I will definitely look at a new pair of Bosch blades rather than the old cheap ones again.