I am not trying to be argumentative, but while Italy may be the birth place of espresso, that does not translate into Italy being the reference gold-standard on espresso.
Couldn't agree more! They also use long life milk for cappuccino with its sweet aftertaste, rarely clean the groups as they should and make grinding plates last for years! Older machines are commonplace and people often tend to stick to one variety of coffee? One village will argue with the next about the slight difference in the shape of their pasta! Ain't saying they're perfect but when one talks about Italian espresso...
One should be careful when applying a "gold standard" to espresso - it means so many things to so many people. We have seen a growth in single variety 100% arabica coffee being used in espresso - a good thing, an interesting development. I've also seen a lot of people shudder when they drink it! If you are used to drinking an Italian style espresso then you will probably find it quite a challenge.
I love the fact that there is a trendy coffee bar in most towns now where "today's special" is an espresso with a rich aroma of cold bacon with a pecan aftertaste where other coffees can be tried but that for me isn't "Gold Standard" either? Ask my mother and her friends if they'd like a latte made with a double shot of that blend next time they come into your cafe and they will try it. They won't complain (because they are British and we aren't very good at that - we save it for Forums!) but will they come back again next week for another - hell no.
There are a miriad of different coffees to explore, blended or otherwise and I am sure there is a Gold Standard Kenya Peaberry somewhere... If you're looking for Gold Standard espresso I simply think you are wrong to rule out blends that include robusta - most like it that way I'm afraid.
Listen, we've come a long way and isn't it great that a handful of beans can get people so wound-up!
One last thing, what the hell is the "Buzz" everyone keeps going on about? If I drink too much coffee I feel sick? I might even get a headache? But I've not had anything I could describe as a buzz? Perhaps I should be smoking coffee or inhaling it? Please don't tell me that I have to chew Kopi Luwak!