Walrus Audio Fundamental Overdrive

For years I've been looking for an overdrive that doesn't necessarily change the general frequency response and tone, but instead just adds some gain and retains the same sound profile. It was driving me crazy that this option was always considered as something premium and expensive (think King of Tone or Timmy). Now Walrus came up with an overdrive that does just that and on top of that it's well built, looks amazing and is really affordable for the quality. I've put it on my pealboard and it immediately became my favourite low gain drive (I use it as low gain, but it gets VERY dirty if you increase the gain). The only con I can think of are the sliders. They are very good quality but I just find knobs a lot more practical. Other than that I find the pedal fantastic.