Sorry Wildside, but I cannot be of any assistance as I do not know the fellow in question, nor have I ever heard of his outfit.
This is not in any way to suggest that there is anything wrong with his outfit, or him, only that I am not familiar with the operation and am therefore not in a position to provide any feedback.
I looked at his web site before responding and see he operates his hunts at Water Valley Station in Sth Australia.
I am familiar with this Station and can assure you there is no shortage of animals there, and some exceptional examples of Red, Fallow etc too.
You would need to encounter some fairly irregular circumstances to have an unsuccessful hunt when hunting Water Valley.
Here in Australia, Water Valley Station is generally considered a "game-ranch" property (high fence), a fact I mention in the interests of full disclosure only and not to cast any comment, or opinion, on high fence hunting.
The property itself is immense in physical size and some of the deer that reside within its boundaries are more wild, for example the fallow deer, than the same species located in other areas that are "free-range".
I guided many hunts there in the past when the property first opened up years ago.
My recommendation to you would be the same as a request made about any outfitter anywhere for any hunt.
# Do your homework
# ask questions of everything that is important to you
# ask for RECENT references and CALL THEM
# ensure you have a proper working contract limiting liability
# request details of, and verify currency, a Corporate Licence & Public liability Insurance cover
(both minimum requirements of all commercial outfitters in Australia and must be current for the State where the hunt is to be conducted).
Australia is a great place to visit and hunt (biased) and Water Valley would be an eye opener for you.
I see on his web site he suggests you may see hundreds of deer daily, having been there myself, I would suggest he is being conservative.
Good luck with your planning and, eventually, your hunt.
Paul.