Great plug for practicing.
Bluetooth feature especially useful when connecting to tablet/PC/phone while going through guitar lesson on YouTube or Truefire or else.
Guitar lesson and the guitar sound right in your headphones.
(also could be used as Bluetooth dongle for wired headphones without guitar)
After downloading some 3rd party app for phone with loops, drum patterns etc., audio could be played back through the headphones.
Amps are okay.
Effects, except for reverbs, are somewhat useless in my opinion.
This thing quite hyped me up for the true wireless guitar and IEM systems.
Never thought it would be so convenient. If you ever thought about that - try this plug - it's perfect, cheap demo for that kind of freedom of movement.
Sitting with your guitar then, in next moment, standing up and playing while moving? Just a breeze.
Answering doorbell? No need to put down the guitar or headphones.
True convenience.