The Joyo R-26 Monomyth is an affordable bass preamp that shines primarily as an equalizer. The EQ section works very well, making it a solid choice for shaping your bass tone.
However, comparing it to Darkglass pedals is a mistake – Darkglass units sound better, feel more intuitive, and are simply in a different league. That said, they also come with a much higher price tag.
For the money, the R-26 serves best as a bass EQ and only occasionally as an overdrive, but don’t expect it to replace high-end alternatives.