Qualitative information only here.

Just looking through their Glassdoor reviews. Average rating 3.3 stars. 60% approve of CEO. As usual, some disgruntled past employee reviews, but also a fair few stunning reviews that can't fault the business. 

Overall people say it's a friendly atmosphere. A few recurring themes are free lunches, smart co-workers, and continuous adaptation. The sales team are reportedly aggressive, but less so than other businesses. 

Complaints mainly revolve around structure- constantly changing teams and objectives. Many write that it is disorganised. 

Also, many report conflict in upper management, lots of politics, to the point of ignoring the lower tiers an of the business.

I find this stuff pretty interesting and you have to take it with a grain of salt. Definitely jump on Glassdoor and get a feel for it yourself. For me, they seem pretty on point for the kind of business that they are. My take away was that they are understandably fluid, and this reduces their efficiency, but this would improve if the business hits it's stride with a focus. I really like the overall positivity about kindness and free lunches- even the negative reviewers appreciated this.