I began taking OLS Lessons after I passed my JLPT2, and with the help of Sakurai Sensei was able to pass my JPLT1 this summer. Honestly, I couldn't have passed without the help of OLS. This is even evident in my marks – the parts we focused the most on in lessons where the sections where I got my highest marks. Thanks to OLS I was able to get into graduate school, where I am now studying Japanese interpretation and translation. Even now, when I have questions, OLS is the first place I turn.
When I started, the flexible timing meant I could study even when I came home late from work. No matter what time of the day, be it ridiculously early or obscenely late, I always received the same high standard of teaching. Even when my work schedule settled down and I would have been able to go to regularly timed classes, I chose to continue studying with OLS because I'd found it so enjoyable and so beneficial.