Wow, the build quality and smoothness of this control has to make it to the top of and pedal owners or synth owners list.
It is reasonably compact for the average boot :)
All connections are sensibly placed at the top of the pedal, so that pedal board width is not used up. Of course, up to you how much room to give it... but I have it in a tight slot between other pedals and it is easy to use.
There is a polarity switch on the back - very useful! You can use this to invert one of the outputs... meaning that as one thing fades out, another fades in, for example. So you could blend from one delay to another effect... the potential is there for many creative applications.
Did I mention it is well made?