Where to begin....
First of all, the lack of clarity about pay. Was promised a "minimum" pay, which in reality ended up being upwards of 25 teaching hours at odd hours of the day and night at different locations in San Jose. Wasn't compensated for transportation or planning hours (which is common enough at teaching jobs) however, the lack of professionalism of the management and administration made working here stressful and unrewarding. From the get-go, it was apparent that very few of the other teachers were happy here and that there seemed to be a very high turn over. The second red flag was the lack of organization of the administration. They need to improve how they keep records, instead of having teachers write attendance in 3 different folders per class, plus student records, class plans, etc, etc. Printing sheets was a nightmare, as you had to email it to reception 24 hours in advance, and most of the time it still wasn't printed for you and you were then met with frustration and attitude by the secretaries for some reason.
Costa Rica is very expensive, and even as the minimalist simple person that I am, I found myself unable to enjoy basic things because it is virtually unaffordable with the pay that you are getting. And we are fully aware of the profit management is making at our expense. I basically lost money, didn't have a great time at all and had to end my contract early because working there made me that miserable. Also 3 other people or more quit around the same time, I guess that's why they are always hiring. They should treat people better and maybe people will stay.