There is only one instructor for the IR, in the aircraft anyway and he was bloody excellent. I have never been worked so hard in all my training but if you can push yourself as much as he does and work as har as he does to get you up to speed, you'll do well. I enjoyed my time there as much as you can on the IR!
I'll second the thoughts on examiner, very fair.
I would recommend them.
Regards,
Buster