Not well instructed...messy. For example, in the video her own faults or issues are not cut out of the video. You watch minutes of that in total and that a total time waister to me. So you tend to zoom out or wanted to skip through the video. Also the assignment instruction are not coherent with the instructions in mode. That is somethings confusing.

Los nuevos conceptos en este son muy interesantes pero el número de ejemplos que se brinda no son muy claros y cuesta entenderlos. La profesora al realizar los ejercicios no deja comentarios en sus codigo lo que dificulta su comprensión.

Mejoras:

- Poner más ejercicios de ejemplos.

- Ser más claro en la explicación de los conceptos.

The topic itself is interesting, but I think this course has a room to improve the lecture video quality. Instructor seems not well prepared when recording the video and she often makes mistakes & mumbles which makes me hard to follow what she is doing. Also I think practice questions are sometimes ambiguous compared to other courses.

Difficult for me to follow in comparison to other courses I had taken on here. 'Mode' was also a challenge to use and follow the instruction given. Overall, I believe some of the resources (mode in particular) have changed since the course was released and the instructions were not updated to align with current operation.

I liked the idea of doing many exercises and assignments instead of just passive listening or reading and I think I benefited from this course.

However, the whole course is poorly organized, and do not blame yourself if you cannot understand what exactly the assignment wants you to do since they are far from clear.

The course is poorly structured, most of the code provided are pictures which makes it wasting time to type everything again. Everyone can make mistake even a pro, but it doesn't help when it comes to presenting yourself to learner, it makes the learning process confusing and time wasting.

This course has very poor instructions, exercises are vague and all solutions don't always align with course. For the DBMS (Mode) used in this course, there is no explanation on how to use it. The instructor expects you to present charts without explaining how to use it.

Overall - I wouldn't recommend this course to people.

Two star for all the SQL practices you get from the hands on exercises. The instructor did put in a lot of thoughts to create these practices.

The AB testing part - they assume students have statistics background.

This course was really frustrating and difficult to follow. I almost lost my interest in SQL while taking this course. A lot of the data was out of date, and the instructor did not explain the concepts or how she came up with the solutions thoroughly.

The course helped to practice the implementation of complicated SQL queries. However, it was quite unstructured and there teacher said wrong concepts and interpretation about hypothesis testing. This course need to be checked.

It's not organized like a class. The teaching style is more like you can shadow me while i work. That's fine if someone can ask questions and get instant feedback. But as an e-learning course it doesn't work very well.

- Coursework was not properly constructed

- Ambiguity around the videos and quizzes, too big a leap from basics to intermediate

- Including AB testing dealt a bigger blow to understanding data wrangling through SQL

Если кратко, то не советую. Ни SQL нормально не попрактикуете, ни в A/B тестах не разберётесь.

Много пространных видео, подача информации не очень. Есть задания в которых совершенно не ясно что нужно делать.

This course lacks some structure, overview and professionalism (like editing the videos). Nevertheless, it is a useful of this specialization, if ones has the extra time to invest.

El funcionamiento del curso en si me presento muchos inconvenientes. Aprendi muy poco y basicamente hice lo posible por sacármelo de arriba. Es un curso NO recomendable.

Assumes the student has far more SQL experience going into this class making it exceedingly difficult with little to no resources to assist in solving the problems.

Class contains a wide variety of issues: unclear instructions and assignments, repetitive and less-than-useful information, topics that are barely covered.

The instructor knows SQL but she needs to take some classes on learning design and teaching. The course is somewhat messy and underprepared.

Poorly delivered videos - level of explanation given is not adequate and exercise questions are not written in an accessible manner

not very organized, and the labs were not as good as most I've taken in coursera. the tool is rather difficult to navigate.

Course content is interesting. However, the projects and practice problems are poorly guided with inadequate instructions.

The didactics are not really good on this course. The exercises are pretty hard and the assignments lack some guidance.

Course final quiz is outdated needs revision. Whole process was complicated and poorly explained.

Partly bad explanations for what is to do. Sometimes not stringent content, so hard to follow

Instructions are not clear and not easy to follow. Would have loved more exercises