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Ah... Cats. You should have said.
Not sure how familiar you are with the different systems buy with nespresso the coffee is in liquid form and the machine just dilutes it with hot water.
Tassimo has ground coffee in the pod and forces hot water through the pod, producing fresh coffee.
Personally I prefer the tassimo system, knowing its ground coffee inside rather than pre brewed concentrated stuff. I've used nespresso a few times though and you do get good coffee from them.
I've been using a tassimo for convenience coffee past couple of years, got an aeropress a while ago and now just use that. Time wise doesn't make much difference once the kettle is boiled and definitely a nicer cup.