Well, it is NOT easy to work with if you want to check that your codes have been learned correctly, because you can only check the codes immediately after learning and before moving on to the next code.

So you have to get up and walk over to the K2 to push the buttons and test it.

I got cocky once ( moi? )and figured since the first ten were perfect, to heck with checking them...then found three bad ones some time later.

PLUS you have to somehow hold up a device meant to be mounted into a wall box. I bought a little aluminum Zero Box ripoff and dedicated one of these to learning only, just so I would not have loose wires all over the place, or have to reassemble a kluge every time.