In the end, the Karcher K5 Premium Electric Power Pressure Washer isn't good enough to be crowned the year's best pressure washer. In fact, it's not even good enough to be in our homes, unless you'd like to conduct a series of troubleshooting and make a few calls to the Karcher customer service. Yes, it can perform its primary job well, but it fails to deliver in every other aspect, in terms of quality, design, and build, which are things we also look for when choosing the right pressure washer for our home.
If you're in the market for a new pressure washer, then I suggest you take a pass with the Karcher K5 Premium Electric Power Pressure Washer and save yourself the disappointment of spending a lot on a product that will only cost you more money. It doesn't matter that this model has fancy patented technology, or that it has "maintenance-free" parts, since these promises may not deliver how they say it will. All in all, we couldn't recommend this product to our family and friends so that we wouldn't recommend it to you.