I bought two of the QK bikes with the sale in '23, I got the Ibex, wife got the Pioneer 750. So far the bikes have been a total hoot. I hunted elk off mine last year, deer this year. The Ibex is full suspension, the pioneer is not.
My Ibex is starting to show some wear on the rear gear set, and the front sprocket. Why? The bike packs a ton of torque on "boost / unlimited" mode that I often use it and it can jump the teeth. I need to start out on eco mode from the start. That, or I need a chain with some stretch in it, that is what i've heard fixes the torque issue in lower gears.
All in all, great bikes and a blast to own. We have spare batteries for both, but really never use them.