My friend bought RC-1 a while back, and I tried it. I had to buy one too.
Boss made this like every other pedal; built like a tank. When I really have the groove on, I can kick it on not worrying will it break. And for it has the size of the pedal button. If I can't miss, nor do you.
And it's sooo easy to use. Just one volume and that's it. I turn it on, loop, and loop some more with mear one kick. I really like the simplisity.
It got even easier with extra footswitch like FS-7. Sure it'll cost a little more but I bought one for me, and it made my RC-1 loops rock even more.
So, RC-1 and for example acoustic guitar - you can't go wrong. So little efford, so much groove.