You should definetly do the course !
I made the mistake of buying the kits then booking the course, at least i will have some spares lol.
After watching the video with the kit i realised i definetly needed to do the course to fully understand it as much of it is different from what i was originally taught at college & other brands i have used.
I am doing CreativeSpa course on Tuesday at ellisons coventry, also get a 5% discount on anything you buy on the day