I tried an Arabic lesson first - holy crap. I have to click the repeat button like 10-20 times per word to hear the pronunciation. Even though it puts the text in front of you, I can't read their alphabet! And reading right to left is certainly something I don't have much practice with.
I tried an Italian lesson next and it was MUCH much easier. Not only are some of the words similar to Spanish, but the grammar seems a bit simpler and they use the same letters that we do, so I can actually read the words on the screen.
At least you can go at your own pace.