I'm not too picky about how the rear wiper looks but I wished it was designed better. The hinge is exposed to the elements and gets dirty easily causing binding. The spring that applies pressure is undersized compounding the issue. It'd be nice if I could cover the hinge and/or get a different spring.

As for the washer spray, it can be fixed by adjusting the aim. Mine use to dribble a useless puddle until I re-aimed it. It's tricky because there's a fine line between useless puddle and missing the glass all together.

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Wake up every day that would be a start.