The Hotone Wally must be the smallest looper around and with 15 minutes of looping, you could easily record 2 Pink Floyd songs and still have time to spare in its memory. It comes in a very sturdy casing which feels heavy for its size. It only weighs 190g but it IS a small package. Those who were in doubt about the usability of the button on a small Hotone pedal: it's not like you're performing surgery when you try to use the knobs; they are quite handy to operate and you quickly adjust to the big level knob on top and the stripes on the 2 front knobs that ensure visibility.
This little guy comes in a box that is as protective as the pedal casing and the nice people of Hotone even included a strip of velcro already cut to spec. These are details but they add op to the complete package and considerate service. The pedal itself has a little metal rail to protect the controls when you click the button with your foot.
The control scheme is as straight forward as any modern minimalistic looper: you control the whole process of recording, overdubbing, undo, stop and delete with single or double taps. Double tap while playing =undo and double tap when stopped is delete. Don't worry, the little reference card is more complex than actually using the pedal; the LED shows you the way. After a few minutes, I had already recorded 4 layers of tunes in which I could always undo the previous one. Go nuts, you can overdub as much as you want. You can control the record volume separately from the output volume so you can blend in layers of sound at the desired volume.