I base my ratings of courses on 3 things:

1) Is the material clear? 3/5

Yes, for the most part, though the lecturer sometimes gets mixed up and uses terms like "class" / "object" the wrong way.

2) Can I generalize from the material to other applications? 2/5

This module spends a lot of time on C before you get to Objective-C specific material, so you don't get much Objective-C. There's a bit of a tour of XCode, but it's not particularly comprehensive. The apps you build are incredibly basic, and there's no real discussion of how to generalize from them.

3) Is the course presented in an engaging way? 1/5

This course is super boring. If you already know C, a lot of the content is a waste of time, but I imagine that if you don't know C this is not a good way to pick it up.

So overall 2/5

One other thing - the assignments are graded in a pretty bizarre way. You have to take a screencap video of your code and your app in action, upload the video, and then wait for another person to enroll in the course and review your submission. In return, you have to review three other people's videos. Sort of a rolling homework Ponzi scheme. This strikes me as a system that could be greatly improved upon!

It is not very polished. The lectures' sound quality is sub par. Also, the curriculum really doesn't deliver what is promised. It also took an extra few weeks to finish just waiting on others to grade my submissions.

This is not valid course, mu rate is 0 (ZERO) of 5 stars. I have submitted peer assignment and due to bug on the platform it has not been .graded. I have contacted several times courseera regarding this issue but it has not been solved and then I have canceled whole subscribption for the specialization which this course is part of. BE AWARE: DO NOT ENROLL THIS.

Be very careful - I couldn't even get my first assignment graded and it took a week to find 3 people who actually finished assignment 1. Also - Apple stopped using Objective C about 6 years ago and is now using the coding language Swift that they developed. Try to find something else until UCI updates the course.

Very very long lectures with ambiguous content. Many information provided are inaccurate, and the course doesn't teach neither programming concepts for beginners, nor high or even intermediate training for other developers.

In my opinion, It's a waste of time.

Course is outdated. The peer review cannot be completed but there are no assignments from other people. Of course this can happen but then withdraw the course from coursera!

Peer review assignments are too hand-held, making the assignments themselves worthless.

This course is quite outdated, I recommend looking at Objective-C by Big Nerd Ranch.