Honestly, the best company, work environment and technology I have had the privilege to work for in the past 15+ years.
Pros
Combines the best of flexible "startup" type environment with the backing of powerful and growing corporate parent with a Global footprint. Run like a family business, it that the founder and senior staff truly care about your welfare and career success. Flywheel may not be well known publicly, but they have been moving mountains (Amazon) in the past few years. For a technologist, lot's of opportunity to work with newest cloud based systems and methodologies. Great internal training program that was crafted by those who paved the way, and are among the most successful in the industry. Incredible brand new headquarters office in Baltimore.
Cons
The technology teams are fairly lean,so expect to wear multiple hats often, may not be the best transition for those coming large "bueurcratic" IT with lot's of lateral support. Not quite a "con" per se, but rather the risk that Flywheel is heavily dependent on the success of it's large e-Tail partners - however, this is not unlike all of Flywheel's competitors also face. Also, there never seems to be enough Bird or Lime scooters outside the office...lol!
