What was challenging for me was the coding because it was really complicated and also it was hard to memorize when you had to say greetings back to them that was a little complicated. Over All this is a great web site ands recommend.
I finished the hole coding 1 and some things that made it challenging is that if you wanna to turn right you would have to do 3 left turns or like when your codes don’t pop up well that’s what happened to me you would have to write them.