Need Help From Experienced American ESL Teachers in KSA

I’m asking American ESL teachers at any level who have worked in more than three schools or institutes in Saudi Arabia to help with these questions:

1) What are the typical weaknesses that Saudi students display in acquiring English as a second language?

2) What are the typical strengths that Saudi students display…?

3) What topics should be avoided due to "cultural taboo"?

Thanks in advance for your time and help!