Pros
I worked for Guidebook for almost 3 years before moving out of the Bay Area so my spouse and I could be closer to our families. In the last 6 months, as Guidebook has experienced more success, they've done a great job adding more benefits (e.g. 401k, better healthcare plans, catered lunched, amazing drinks/snacks, company outings). They've also corrected a lot of the pay issues that a lot of startups suffer from when first getting off the ground. By the time I left my job, I believe I was paid above market rate. The company has a strong culture and managers encourage their team members to continue to develop their skills. Also, now that the company is larger (65 employees at the time I am writing this review), work life balance is much better.
Cons
Though the culture is strong, I think it should be officially spelled out. Also, Guidebook hires a lot of people with 0-2 years of work experience. I think Guidebook would benefit from bringing in a few managers with more experience (say 5-10 years).