Pros
The company is a start-up, so you can get involved in many different projects and make a real impact while growing in your career. People are really open, kind and read to help - this is definitely a must!
The company's mission is amazing, to me that's nothing better than making money while your work is helping to create a better world.
So, yes: definitely a great place to work if you're a hands-on person!
Cons
The company is building processes and creating structure - which is also a must to have for me - but maybe cannot be the best option for those who don't want to involve so much.