Pros
I am based virtually in the US, even remote from home, they make you feel connected in person, weekly social hour (a fine British tradition) virtually , the US VP is a witty gentleman you want to hang out after work for a drink. IT support team will have virtual clinics so they will pro-actively support you instead of submitting tickets. More vacation days than almost all the US companies I worked for, competitive salary, an upbeat CEO and can do team, if you like watching Simon Cowell or Spice Girls shows, or following the news of Richard Branson's or British soccer leagues, you are definitely want to join them.
Cons
I was hired for a specific project and I had exceptions for myself, due to change of the project and how it was structured, it was my decision to move on so I can better exercise my skill as well as better alignment of UK team to complete the project.