Here is my review for your product:
For this product, I like to mark it as
8.2
(Max: 10)
Pros:
- It can provide a very useful way for people to learn coding
- It is useful for beginner also for professional
- It can increase our knowledge
- It covered a lot of program languages
Cons:
- Nothing for this product

Good work on hunting, thank for bring us a good product
(Please noted that it is my personal opinion only)