I have the 'Plus' which is a stand alone frother on its own removable electric base - it is ingeniously designed with the 2 different frothing heads held in only by magnetism making it easy to clean & change heads. I believe that the '3' is the same thing but is integrated into a receptacle in a different model.

I make only cappies so I pull a long shot (lungo) on a normal pod that is intensity rated at least 8 of 10 in Nespresso's line of coffees. I ordered a mixture of 8, 9 & 10s - they are all the same price. They have several 'lungo' pods available with a little more coffee stuffed into them but they are rated only at 7 or lower but I've never used them.

You get 16 pods included with the machine so that you can sample the different flavours. For me the highest intensities make a very nice cappy even though they are designed for a single shot - great 'crema' that is best shown in a clear glass cup...

TAM