I bought this pedal to replace another great double pedal featuring D amp and TS style drive (the posh Italian made one) in my main pedalboard, since I needed a more aggressive D sound (more Lindley/Harper than Ford), and it's just what I was looking for. It lacks the capability to change the order of the two drive units with a switch, but you can manage to do that using the send and return sockets, that make the pedal more versatile for those who use an external switching system or want to put one or more pedals between the klone and the amp simulation sections (a tweed amp style overdrive in the loop with a low gain setting is great, either when driven by the Klone or driving the D- amp section, a compressor lets you choose to apply compression after the klone, mantaining dynamic control on the drive attack, or before the amp drive, enhancing sustain and evenness for rhithm or slide guitar). The main feature, however, is the rawer, more aggressive attitude of this pedal compared to other D style pedals, while stil mantaining the dynamics, note separation and violin like sustain typical of that kind of overdrive. The germanium transistors option on the klone side differs slightly from that using germanium diodes and gives more perceived drive and glorious harmonics, but only at high gain settings. The build quality is great as usual with CTC pedals (I also own a Falcon and a Killer V).
Klones and D style pedal are often associated with a "blues lawyer" attitude, the Unobtainable Raw is a pedal for those who feel more like rockers, but seek the "unobtainable" refinement and class of a klone and a Dumble.