The sound - clean or distorted - just the best, despite the small size. While there is a transistor amplifier, but it generates really on tube amp reminiscent warm sounds and reacts like a tube (that can be a lot of work with the knobs on the guitar to adjust the sound). The effects are partly a bit over the top; is to say: look a bit intrusive. For all built-in effects, it is sufficient to act on the lowest setting, otherwise the sound becomes overloaded.
Even with the PC together makes the THR 5 cuts a fine figure: Using USB cable, it can connect to the PC and with the appropriate software and drivers (available in the network or on the supplied CD-Rom) simply can on the one hand the amp via the PC control (Effects Select, etc.) but also the amp used as an external sound card such as music and to practice through the amplifier output (and play equal) or about the guitar pick up directly.
This little amp really offers a bunch of possibilities. A compact, great sounding amplifier for everyone;)