We have a Dolce Gusto. Previously we had a Tassimo machine - another pod machine.
Our Tassimo pods were generally dearer. It was a much easier machine to work, flip up lid, drop in pod shut lid. The Dolce Gusto you have to open the drawer put in the pod , shut the drawer and then select the strength.
Both are an equal faff to descale and that has to be done regularly and the machine will alert you to that and it wont work unless you do it.
We've tried also the non Dolce Gusto pods which are much cheaper BUT although they do work , if you are a fraction off inserting them you damage the pin then its game over. So not really worth the savings.
Both have a good range of coffees but the full range for both is only available on line and hardly ever reduced .
I love a latte so wont be without a machine but if it was my choice I might go back to a Tassimo.
Hope this helps a bit.