Seldom did I want to auto write a review for one product. Different for this time. It's imperfect. I use winx video converter deluxe to convert and downsize my large 4k footage. So pity that its editor is so weak, can't find advanced editing tools. As a trade-off, the converting speed is one of a kind. The gpu hardware acceleration is enabled, it finished the 4k converting fastly at 320FPS, CPU usage only 34%. Very impressed at its speed!