The Primus Onja was the most unusually designed stove we tested. It's super cute, and we were excited to get cooking and see how it would measure up to the more traditional models in our review. Unfortunately, it fell short in almost every category. What we initially thought was a fun and innovative system for carrying and packing up the stove turned out to be annoying and poorly designed. We struggled extensively with the burner knobs, and on the first use, the flames scorched the pretty white paint job. The wind was a serious issue for this stove as well. All-in-all, the Onja has a lot of problems that need to get hammered out before it's ready for serious use.
For a well-constructed stove that has survived the test of time and abuse across all our metrics, we recommend checking out the Camp Chef Everest, our Editors' Choice. Not only will it cost you $25 less than the Onja, but it's also straightforward, durable, and high-performing.