The general working culture is comfortable and inclusive, it's rather simple to talk with colleges. The office is nicely designed and there are plenty of communication space to have a brief, ad-hoc chat.
There are plenty of meetings, partly because the need to communicate with team members in Tokyo office. That said, there are still plenty of dedicated time for coding and studying -- for which the office environment is really good for.
Part of the office is very often rented as a meet-up space for external events as well as internal ones. For software developers those are usually good chance to expand personal networks.