Relax BBS77. I do respect your point of view, I,m just hoping the OP client doesn,t stop where she is right now, thinking that because she has a certification saying fully qualified, that,s it...and she is qualified. Is true that 1 day course from a high standard like CND offer a lot of good stuff in 1 day course, but unfortunately, the majority of beauty school outside offering 1 day nail course, offer you cheap course with lack of information that won,t help you provide a good service.
I have taken a few cheap-fast course since last year, and i did commit plenty of errors with a few clients when i started because of the lack of quality of those courses, even if my certificacion said ´fully qualified nail tech´ . Experience is telling me, go with the high standard, so my next stop will be a CND course or organic nails course (organic nails is a high standard company that produce the best latin america nail products). I just hope, OP client really is interest in this and decide to improve and learn more, not just feel satisfied with the idea of knowing all in 1 day cheap course.