Hi hun i've just done my training with sienna last week. I really enjoyed it, it is just half a day so you are qualified straight away! On the course you learn contra indications, health and safety etc was well as the practical techniques. You also learn about the retail products that sienna do, and its not done as a sales pitch at all, just product knowledge. You get a manual, some promotional material, a badge and some sachets of the retail products to try out. I didn't need to take a model, you work on each other which i think is really good as you get to have a spray tan done and do one, and watch the others. Have to say i had never had a proper sprary tan before and i was so impressed. Theres a little quiz at the end too but not hard its about what you have covered on the course. what else did we do... oh how to look after your equipment and look after you pop up tent.
With regards to the business in a box i bought the show kit from gmex this year which didn't include some of the things i need such as barrier cream, and only 1 colour solution, but this is fine for now, after some practise tans i will have made enough money to buy new solutions. I think you need to price up everything you want/need and compare it. I have the maximist 5008 machine which a lot of therapists use and love.
Hope some of this is useful hun
good luck xxx