WITHOUT pressing a key or sending any MIDI to the keyboard, the MIDI messages will be severely delayed (1-2 seconds between pressing a key and receiving the corresponding MIDI message on the computer)

Even though this is a 1X1 MIDI interface, it really did achieve the goal, I have close to real-time strike the key...hear the sound coming from the computer

when I start pressed down the pedal it sometimes play very loud E note

On the other hand, when I got fed up with the idiotic back and forth e-mail nonsense requesting that they read my e-mail, I contacted American Music and they sent an RMA immediately