It's quite a basic product but has great utility if, like me, you have to keep reaching for the output level of your interface to make master level changes. I, like many home producers, are limited by space so the possibility of including a dedicated mixer isn't always the most efficient use of space, especially as many/most of us do our mixing in the DAW anyway.
This takes up very little space in my work space and the XLR connections ensure that everything is securely fastened (and balanced, of course!) and there is a good weight to the unit to keep it from sliding around the desk. The attenuator has a silky smooth action and level adjustments are very linear with no surprises in the way of jumps up/down in level. The mute button has it's obvious use but the mono function is very helpful when wanting to quickly check your mix works in mono and it's difficult to believe that some other units of this type don't include this function.
The unit looks fantastic with a 'vintage' styling and the build quality matches the appearance too. There is no noticeable colouration to the sound as it is a passive unit and the biggest compliment I can pay is that I forget it is there even though I use it constantly.
In short, if you are considering this unit or any other at this price point then you will definitely not be disappointed with this