Pros
NEXON has a very liberal culture. Compared to other companies in South Korea, it's very young and energetic. It innovated online game industry with a new business model of free game with paid items. In addition, it has very strong balance sheet. It produced several popular online games and attracted a great number of young gamers from domestic and overseas markets. Although the games are technically free to play, most of the players are buying a lot of additional paid items to improve their virtual characters. Some of them are literally pouring all of their money into the games. With the stacked money, it acquired another successful game company in South Korea, and I heard some rumors from local news that Walt Disney Company is interested in acquiring NEXON at around two billion dollar.
Cons
In recent few years, NEXON starts getting somewhat greedy. It seems to have forgotten what really matters in games is to serve its gamers at its best. Rather than putting much of its energy into making games more fun and interesting, it's concentrating on squeezing most money out of young gamers' pockets. Due to the change of its focus, it failed to produce successful games for the past two years in contrast to its early days. In recent few years, it's publishing games made from external game studios rather than making its own.