I bought this interface to replace my Tascam US-428 that no longer hold water, particularly because of win 7.
With this change I went from 2 to 4 inputs and I lost control interface tascam.

For my part, 2 inputs are sufficient, I am not limited (for those who need more, Steinberg has released a version 4 inputs equivalent to the UR22), for against the control surface but I miss n ' there was no equivalent to US428 less than 200 €.

Highlight announced by Steinberg: yamaha integrated preamps on inputs

For the technical part:
2 XLR / jack
1 midi in and one midi out
+48 V phantom power
Audio output jacks 2 (a bit surprising that matter)
a headphone jack
control the output level and independent headphone level
Powered via the USB

Overall, this is the best quality / price I found report.

I put 9/10 just for the phantom power button which is located at the rear of the case.

UTILIZATION

No worries with the installation.
No worries stability.
I use Reaper as DAW under Win 7.
Very low latency.

I do not know if the drivers are updated, those that I have works perfectly so ...

So perfect.

GETTING STARTED

The configuration for someone who has a little experience does not pose any problems.
The asio part declaration midi inputs, etc ... is always a bit tricky but it is more related to the DAW at the interface ur22 in itself.

OVERALL OPINION

I use it for a year and I am truly amazed at the ease of use.

The preamps are really good, I do not use my audi buddy of all m-audio.

I have not tried 50 models before choosing this one but I would do the same choice without problem, especially at this price point ...
I plan to complete a MIDI control surface usb cheap to get back at the us438.

In summary, you can go there with your eyes closed.