Is teaching in Korea worth it?

I've been thinking about teaching in Korea for a very long time. I've done research on the culture there and the whole country just seems really beautiful, even the streets of the cities.

But sometimes things may not be as great as they seem, so I was wondering if I could get some opinions on people's experience teaching English there?

What are some parts that are better than you expected? Which parts weren't as good? What are some things I should know before moving across? And lastly, if I fall in love with the country, what are the opportunities like for full time employment?

TIA everyone!