1) your opinions on the main characters
Igao- He is a very clever character. I dont think he is evil at all. Iago can be very nice. Maybe something provoke him to be like this.
Othello- At first, i thought Othello is a very gentle, respectful man. But as i read through the scenes and acts, i found out that Othello anger is triggered by someone while Othello is having sex with his wife :|. This shows that his weakness is Desdemona.
Cassio- Cassio cares about his pride too much which led him to fall into Iago's plan.
Roderigo- Roderigo love for Desdemona had made him blind. He did not realize that without Roderigo, Iago plan isn't going to work. Roderigo was about to realize that he is failing, but Iago's power of convincing people is very strong.
Desdemona- She knows how to speak for herself. She is a gentle lady and would stick with Othello through it all.

2) your thoughts on the storyline
The way one event leads into another made me want to read more. The way Iago's talking to the audience made it seem like Iago's telling the plan to them. So far, i haven't really read through all of it yet, so i dont really know what's my thoughts on the storyline :||||