I had 10 band EQ but I realised that I was looking for something different to sculpt my sound, so I sold it and bought the Long Life EQ instead. I'm very pleased with it.
Because it's not a traditional EQ, it's not immediately clear how it works - you will need to spend some time experimenting with it. Once you understand it, you can get results very quickly in order to sculpt your sound. That speed of use was an important factor for me as i want to stay in the creative flow when I'm writing new music.
The pedal ingeniously has two filters built into it; on the bass end you have a classic low-pass filter which sounds fantastic on everything including synths, and can be controlled by an expression pedal. It cuts off the higher frequencies and you can control by how much. In the mid range the pedal functions as a band pass filter, and then on the high end it's a high-pass filter, letting through only treble frequencies. I find this very useful when working on different parts in my productions as I can quickly get a ballpark EQ range for my sound and keep the sound limited to a specific frequency range so that it sits better in the mix.
For the more adventurous, you can control frequency and resonance using CV from your modular gear and it can even self-oscillate at high resonance settings. Using a separate expression pedal you can also use the EQ like a wah.
Quality-wise it's like the other Fairfield Circuitry products; premium quality and built to last. Worth the price. This pedal is a keeper for me.