Hiya,
Ive trainined with them at there head office in worcester as its just up the road from me.
They are a brilliant company to work with always on hand for any advice they can give.
The tan the soultions themselves i must say i have never (touch wood) had any problems the colours are lovely i was previously using st tropez along side sienna x, but after about 3months i stopped using st tropez as all my clients had converted over to sienna x.
So for me they are fab and would never change.
The End ( LOL ) hehe
xx