VoiceLive 3 Extreme : A DEFECTIVE UNIT REPLACED WITH ANOTHER DEFECTIVE UNIT

My unit arrived defective and got replaced with another unit with exactly the same problem. Which is probably a ground loop problem and it's affecting the guitar side, meaning every time you plug your guitar, the machine produces a loud noise/hum that makes it totally unusable.

Now this can't be just my bad luck and with a little research on the net I have realised this product has some manufacturing problem which has never been solved and there are loads of people complaining about it. I even contacted the TC Helicon but they weren't very reassuring.

So... in short:

VOCAL FX: Wonderful

GUITAR FX: Good effects, poor amp simulations

LOOPER: Haven't had time to try that

MANIFACTURING: from my experience, very poor

Also, I think the pedal is very well organised and makes your life easier in many ways.

I am sorry to let it go but if I'm going to spend so much money and rely on a unit for vocal effects, guitar effects, backing tracks so basically my entire live show, it has to be reliable. And this is not!