I'm a big fan of loopers.
I hope you find it to be a very useful tool and lots of fun.
On a separate thread you asked about pedal positions in your signal path.
I believe the looper is best at the end of the chain.
When positioned there, you can choose to feed clean or over driven tones to the looper.
How that can be useful is as follows:
You play a clean chord progression and record that as your base loop.
Then you can mess around with various pickup selections, tone variations and O/D tones as your lead, on top of that.
I believe that would be a vary common way to use a looper for practice.
Having said that, the looper can be a useful tool in other ways.
I've got a very elaborate signal path with several pedals and multiple amps that can be switched in and out.
I have two loopers.
The one at the end of my signal path is used as I described.
I also use a Ditto at the very beginning of my signal path.
I use that one to record a short sample.
It continues to play that loop, sending it through the rest of my pedals/amps.
While that plays I can put down the guitar and tweak the controls on the pedals, dial in the amp controls and test any combination of my tone pallet.
In the same way, it can help me find connection or wiring issues along the path allowing me to have a guitar signal playing while I check for loose wires, bad cables etc..
Anyways...........enjoy your looper!