My wife & I used Jay's services recently when we had long stopover in Hong Kong and had a wonderful time.
It was a very good price for an all day private tour in comparison to other options we were given and we got to see all the main sights in a short space of time (approx 8 hours) without any of the hassle (the public transport system would have been quite overwhelming on our own).
He picked us up at the airport on time, sorted out all the public transport, was flexible on where we went/what we wanted to do and how long to spend at each place, was very knowledgable about the sights (history, facts and also and best times to go - eg. to avoid crowds), then dropped us back at the airport at the end of the day. Jay was easy to get along with, plus having a local guide meant we had a delicious authentic dim sum lunch off the main tourist track at a place we wouldn't have known existed on our own (or without the hassle of internet research) :)
Would thoroughly recommend Jay for a day trip - or even longer - we would certainly use his services again when returning to HK.
Ps. Regarding yoda069's review below - if you look at his website Jay is often out and about on 2 or 3 day tours and mentions that there may be a delay in responding to enquiries.
Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.