Lush is my guilty pleasure. And yes, I have every reason to feel guilty about it. I somehow justify having sparky, fizzy, coloured bath water at $5-$6 a pop.
Some products here give you more mileage - such as the soaps and shampoo bars. These work out to be much cheaper per use, but not as fun.
The sales associates are helpful but a bit too eager sometimes. I think this is a result of Lush's training and sales tactics. It can be a bit overbearing, and you can tell some of the SAs are uncomfortable with it, too. Its a bit awkward. But I do love how educated and familiar they are with their products.