I just couldn't bring myself to spend $200+ for the OEM rainguards and with fall and winter just around the corner didn't want to wait to see if WeatherTech was going to do rainguards for the Kona (there are more popular car models they haven't done). So, I settled for the WellVisors, which I got for $57 shipped from Walmart.com.
I think they look good, but they weren't quite what I was expecting. Most WellVisors rainguards use two metal clips per piece, along with 3M adhesive, to attach. It turns out the Kona version (and about 10-15% of WellVisors) do not use that system. The Kona version is mostly adhesive, with just one plastic clip up front. On top of that, the instructions are terrible, as in non-existent. The box comes with nothing but says to go to their website or call a phone number. The website has one set of generic installation instructions for the metal clip variety (which doesn't apply in this case) and says to go to their YouTube channel for variants. The problem there is that the YouTube channel has at least 50 model specific videos up, but not for the Kona. I ended up watching the start of quite a few before I found a few cars that had similar installation requirements, but even then they weren't exact. Luckily I was able to figure it out from there.
For 1/4 the price I guess you have to expect some drawbacks. We'll see how these hold up long-term.