I, an European customer, have an issue with finding right size of bra of other brands in Australia. I have been a customer of Triumph bras since teen age old.
I visited this shop a couple of times but never bought anything due to lack of time on hand. Trying bras on is matter of few hours for me. However, I always found the shop assistants very willing to help and assist.

This time I wad determined to walk out with at least one bra. I spent a fair bit of time trying on bras in special but also regular price. I did not any accompany to give me feedback for that reason I always asked the shop assistant for her opinion. When I put on a bra that wasn't fitting obviously, she said so. However, any other bras that were sort of fitting right she encouraged me to purchase. Later, my partner came along and helped me to make the right decisions (thanks for him being there).
There was a time when I said I liked a bra (for its style and shape although the size did not fit me perfectly). Shop assistant agreed it was very nice piece and not too bad fitting on me. My partner disagreed but said it did not sit right. Once I shot door from fitting room, the assistant said it had not fitted perfectly...and there are others fitting better. Right at that point, I realised, she would not mind to sell me a bra that was not right fit for me...but supported my belief and encouraged me to purchase it.

I recommend the shop for many reason - great product quality, special pricing of selected products, very friendly and helpful assistance BUT take someone with you...a partner or girl friend who understand bra fitting.