Had been struggling to choose between this and the Darkglass B3K, in the end I waited till I saved up enough for both - best decision I have made in a long time. Both pedals have their own distinct character, however Id say this is perhaps a little more versatile. I was expecting a fairly low gain overdrive pedal however it can get pretty filthy (in a good way) with the gain cranked. However seeing as im using it as an 'always-on light overdrive' effect I rarely need the gain much more than half way.
The sound of this pedal is great, and as mentioned previously its really versatile. Capable of covering a lot of sounds and styles. I play in a prog metal band with guitarists who use 8 strings so needed something which will cut through the mix nicely. The ERA knob is definitely the key in defining your sound, with the dial fully anti-clockwise it gives an old school vintage tube sound, and with the dial fully clockwise it gives a slightly more modern take on the sound. Iv been having a lot of fun dialing in a geddy lee type bass tone and this thing nails it pretty well.
As with the B3K this pedal is built to last and again my only minor gripe is with the placement of the power supply jack. Would I recommend this pedal? YES