I thought its broken in the first place. I had a problem with the USB plug on my computer, so the sound was crackling especially on youtube videos. The USB port was probably bottlenecking the data transfer. I switched the USB port to the USB 3.0 one (even tho its a USB 2.0 device) and it solved the problem.
My only complain is that, it doesnt come with a dedicated headphone volume knob or a mute switch. So as long as my headphones are plugged in, they work. If you don't have a volume knob on your speakers, its very hard to balance the volume of monitors and headphones. If I knew it, I would buy the 2i2. And also, you cannot do a stereo recording from your stereo effects unit.
Good overall. Do consider its cons and pros. 2i2 may be a better option for you.