Stay away! (SLP Gwangju - fancy yellow building in Sangmu)

While the school staff and teachers are very helpful and positive people, the principal and the overall organization is beyond belief. To say it's poor, it's an understatement.
Be ready to work all day, non-stop classes, no time whatsoever to prepare anything. Most kids will have near zero English skills and you'll have to deal with 10 or so per class by yourself.
If the working conditions weren't poor enough for a teacher, then they change and add teaching material at will (the workload for kids is already a bit much btw). Sometimes you're told to do or prepare something with 5 minutes to start your class.
Events pop up in their calendar at all times and you end up working evenings and some Saturdays without any extra payment. Then when your 5-days vacation approaches, they come up with silly excuses to give you 4 days or less; it's a constant battle to get only what you're supposed to have.
It's a horrible experience for newcomers and a job that nobody in their right state of mind should take. I don't know any teacher already in Korea that would accept this job. There are other hagwons in town with better conditions, look out there. And if you don't want to take my word, try to speak to the teacher you're going to replace before you sign the contract (I doubt you'd be able to and that's a sign).
PS1: On a positive note, just to be fair, there were never any problems regarding my salary.
PS2: Surprisingly, there aren't many recent reviews about SLP. But trust the old ones, things haven't changed much since whenever they were written.