I installed this on
BMW M5

Review
One of the best priced glass cleaners in the market. Gets the job done pretty much streak free if your glass is not too dirty. Removes water stains like a charm. Doesn't fare too well if the glass is extremely dirty however. Pretty much use this to get the water stains off after washing the car.

What I like
Cheap and good, hassle free, doesn't stink of ammonia.

What I do not like
Isn't powerful enough to cut through road grease if you've got an extremely dirty glass.