Pros:

• Has a free-tier community package
• Has higher-paid-tiers packages for learners, startups, companies and businesses
• Available on all platforms! A huge plus point
• Able to live-edit your codes while the program is running = live preview, which is great for productivity
• High-level language = easier for people to pick up
• Documentations provided seems decent

Cons:

• It's a new language and a new framework which is unlike others
• Users would have to pick up the new language in order to work with this framework
• High-level language = slightly less efficient codes