My daughter was from local kindergarten at Sham Shui Po. She got an offer to study Year One at Beacon Hill School a few years back. It was better than Kowloon Junior as it is one of the longest history schools of ESF.
That was a few years back.. at that time, we pay about HK$6K per month.
I guess more now. We left the school and transferred to a local school after Year One there.