Hello Alex and welcome to the Fairfax forums!
Puccino is only sold on the Web so we can offer the finest prices. The pressure gauge helps you judge the right pressure, I normally go for a reading of 11 Bars. You can get a good result of up to 65ml in the cup. After that you can dilute it into an Americano, but running more water through the grounds will make the coffee taste bitter.
Most domestic machines have a steam arm about the same length. This should not be a problem.
You can't make a good espresso from beans without them being fresh and properly ground, no matter what machine you use.
If you don't want to spend the money on a
Pavoni grinder then an
Ascaso i Mini is well worth considering. It has big steel conical burrs, and will last a lifetime if you look after it.
We prefer this solution than built in grinders with traditional machines because we think the separate grinders work better.
Hope this helps and if you have any more questions don't hesitate to ask.