I studied in OB, and based on my experience I can whole-heartedly NOT recommend this school. Academically speaking, they tend to focus more on memorization and writing down notes as a means of comprehending the material which, quite frankly does not work if you want your kid to comprehend the subject. Half-day is also not enough to instill a sense of discipline for the kids, nangyayari sakin before after getting home, I would do my assignment then watch TV for the rest of the day.
Btw, I entered OB in the 5th grade. I was shocked at how bad the grammar and diction of my classmates were. As well as their English comprehension, grabe. In my class it was unheard of to speak in straight English.