This is a review about the quality of the espresso the machine makes, and not about
the short or long term reliability of the machine, since I have only had it for about a month.
I bought coffee beans from a starbuck coffee shop and asked the barista to grind the beans for an espresso maker. Decided not to buy a grinder (since reviews on grinders seem to indicate nothing but trouble). The first results I got were disappointing. No matter how well I packed the 2 shot coffee filter, or how much coffee I packed into it, the pressure on the indicator dial never reached even the beginning of the "optimum" range.
Then I decide to ask the barista if they had a finer espresso grind. They said their finest was # "2". With that grind, I filled the 2 shot filter with coffee to the top of the filter, and packed the grinds as hard as I could. Started the machine. The needle started to rise, reached the optimum range, went all the way up the optimum range and beyond it before finally stopping when the machine stopped pouring coffee! I also noticed that the amount of coffee poured was somewhat less than 2 shots of coffee. Removing the filter holder from the machine, it was clear that the filter had water, that had not pressed through the coffee, mixed in with the spent grinds.
The next cup of espresso I made, I did not pack the coffee as hard, or fill as high. I left about an 1/8" between the coffee and the filter rim . That did it. After starting up the scale the needle stopped 3/4 up the optimum level scale, and the coffee it made looked like 2 full shots and, when I removed the filter holder the coffee filter was mostly dry! The espresso had a nice layer of crema, added a little Milk, lots of foam...perfect!
What did it for me was 1) the right grind, 2) the right packing pressure, 3) the right amount of coffee.
I hope this helps some fellow home baristas!