Lol, as Laura I'm also a Nespresso fan, but I gotta say that my parents have Tassimo and my girlfriend Dolce Gusto and I love the three of them... Must be just because I'm a coffee lover or something like that...
At one point I had to choose betweent tassimo or dolce gusto, because my girlfriend and I had to go to live together, so she said, no Nespresso... And I said, ok so I guess I have to pick one!! Might sound silly but you trust me, coffee is an important subject for me :P Anyways, I ended up looking around all the internet, even using different languages and using the translator and all that. I ended checking this review http://cafeterasexpress.net/tassimo-o-dolce-gusto/
cause all of them tell you that both are ok, but this last one said that the author prefers tassimo, so we ended up getting a t20 like that one and guess what... I don't like it! haha
So I guess what I'm trying to say is... Try both, check prices and then pick yourself the one you believe is the best