Flawless

I onily use this as a controller for guitat rig 4 and it works perfectly and it's built soldly, it's a no brainer for guitar rig software.

NI- Still Best Software, Now Best Hardware

absolutely tank built, goof-proof, pristine interface and controller...when I'm not running a gtr or bass, I runs my KORG M-50 through those wonderful amps & FX and get the classics to the intersteller overdrive future of guitar amp & FX modeling ! be sure and buy the GR4 add-ons Traktor's 12 & Reflektor (best reverb out there)...it's not cheap, but you get what you pay for.

Works great with ASIO. Not so good with Windows sound.

I purchased the Rig Kontrol 3 for use as an audio interface, expression pedal, and MIDI controller.

First impressions: The RK3 is solid, feels hefty and well-made. The pedal stays where you leave it and the buttons seem like they could hold up to some stomping. However, the USB connector on the back is extremely loose and easily wiggles around, an alarming situation for a device that should be usable on stage. Bump this thing the wrong way and you're going down.

There is no output gain or volume control, so either have a mixer handy for DAW use or prepare to have your monitors blown out since the only onboard volume options are a button which selects between -14dB and 0dB.

The audio interface works great when it comes to ASIO use, or applications that are going to constantly keep the sound card active. The problem is, I tried to use it with a software DJ application that does not make use of ASIO, and found that after about 10 seconds, the sound card goes to sleep if it's not sending any output, and doesn't respond until the next time it receives a signal to output. What could have possessed Native Instruments to build the Rig Kontrol this way?! It renders the sound card effectively useless if you want to record or utilize the inputs/outputs in a non-ASIO program.