Pros
As someone who was just fresh out of college, this company is a good stepping stone to get professional experience and learn set of skills you probably never knew about beforehand in smartphone industry. You'll get the necessary time and training to start out even if you have no prior skills.
Cons
There is no upward mobility in this company. No matter how hard, dedicated, passionate you are working at this company, there is no room to grow up the ladder. So keep that in mind. This is also predominantly a Korean work culture company where most employees are born and raised in Korea. So if you were born in US and are an English native, there will be that language, culture and mindset differences that may be a big con if you aren't able to adapt.