Re: singlehanded sailing course
A quick Google of that name didn't bring up anything other than domain name sites, and your inquiry from here.
I'll chime in with Michael above, if this is one-on-one instruction in how to sail, then (depending on the instructor) great, the more tiller time the better.
But learn to sail first (if you haven't), then learn to grow two extra hands, two extra legs, and a clone of yourself. That's kind of what you need to make a good sailor into a good singlehand sailor.
Plus the psychological part where you can stand your own company, etc.