Just a wee update on Hamburg...
The best outlet of niche perfumes I came across in Hamburg was:
Grosse Bleichen 23
They stocked an excellent variety of fragrance and perfumed products for the home. The staff were friendly and accommodating. Just a portion of their stock included:
Montale, Diptyque, Byredo, Frederic Malle, Esteban, Etro, Miller Harris, Escentric Molecules, Parfums Generale, Robert Piguet, Marc Buxton, Creed and so on.
On the flipside, the highly touted Perfumerie at Hamburger Hof - whilst boasting a staggering range - had sales staff who were rude and pretentious and made you feel looked down upon. Despite my knowledge of their range being really rather vast, I couldn't help but feel my insights and opinions were insignificant and somehow tiresome to their ears. As a result I pocketed the €300 I had planned to spend on Washington Tremlett and Mona d'Orio and exited the store toute suite!