Yep, done big cats in Kent (twice), Wolves in Scotland and birds of prey in Bedfordshire. All were a good day out and very well presented. Chris is a nice bloke with a lot of experience to share.
What I found good is that he is there to answer your questions and doesn't take his camera. This means that he is there for you. Groups are pretty small.
Have a look at my website (link in the footer) and any of the big cats and wolves in the wildlife section have come from his courses together with some of the others.
Access to the subject is very good as they are pre-arranged photo courses. This means that you can get over the first fence and to the inner fence in some of the places.
Personally, its been well worth it.