Everyone I've talked to - from Hendrik, one of the founders, to every tech I've chatted with, has been very helpful. And they seem to enjoy it!
From the perspective of someone who has been building websites for pay for over 20 years, I love the features geared toward collaboration with my clients.
1. Responsive and easy to use
2. Great for running long term test
3. The interface is super simple IMO and the Todo feature seems nice for agencies.
4. It has the agency mindset which web flow doesn't have.
5. Definitely for people who just want to deploy websites quickly or don't want to have the learning curve for WP plugins etc.