4. no endless variants of latte, mocha and what have you [1]
Let's suppose the rush hour is after lunch, then everyone will be getting an espresso, someone macchiato (only tourists drink cappuccino after 11 am), but the price is the same. And basically you have a line at the bar and a line to pay.
The bar can usually make up to 8 espresso at a time and people cram in front of it by the dozen and drink it in under a minute.
You can pay before or after according to where the queue is shorter.
> 4. no endless variants of latte, mocha and what have you
That sounds awesome. I can't even count the number of times I've waited for some goofball's complex six-word drink to be made so I can give the cashier $2 and get a cup in return. (Most places around here sell you the cup and you pour your own coffee from a vacuum pot.)
Here in Portugal (and also in Spain, IIRC) it's much the same, almost everyone drinks a normal espresso or a simple mix of espresso and milk (semi-skimmed, I think you'd call it).
The one big differences that I can think of is that basically everybody orders the same thing (an espresso) so there is no need to take and manage orders in the same way. This also makes it a lot quicker to prepare the coffee. Also payment is a lot quicker when there is basically one order at one prices.
2. no paper cups
3. no useless lids
4. no endless variants of latte, mocha and what have you [1]
Let's suppose the rush hour is after lunch, then everyone will be getting an espresso, someone macchiato (only tourists drink cappuccino after 11 am), but the price is the same. And basically you have a line at the bar and a line to pay. The bar can usually make up to 8 espresso at a time and people cram in front of it by the dozen and drink it in under a minute. You can pay before or after according to where the queue is shorter.
[1] http://www.youtube.com/watch?v=rBNOB7FkSSM