It's a very good course, not giving 5 stars only because a couple of questions were really context-dependent and it's hard to answer them correctly without searching through the precise wording of the lessons.

Awesome and well explained.

Amazing Course :)

Great course, somewhat more challenging and involved than previous courses in this specialization.

Once you are done with the testing, you will feel very confident that you can write, debug and test Solidity smart contracts, no doubt!

Thank you for such great work and effort creating this course.

very useful

The 3rd course in this specialization continues building on the previous one. The programming assignment is intimidating at first glance, especially if you are not used in JavaScript style syntax and programming. As usual, with some effort someone is able to overcome all challenges. Again, in order to acquire a more in-depth look in these concepts, personal dedication and effort is required beyond the minimal time-commitment stated in the course's review

I really enjoyed the course. I like ma'am bina ramamurthy teaching style, to give the student a clear understanding of each topic.Thanks very much for this course.

The software behind Ethereum is immature. Should not be even allowed in beta release.

Exccellent course, very motivating, well organized and structured.

perfect