Hi Irene
I had a Tassimo for a couple of years and really liked it. Used it to death tho and when it gave up the ghost a few weeks ago I replaced it with a Dolce Gusto, which think is really good. The plus points of the Tassimo have to be the variety of drinks you can get, the downside for me was that you can muck it up by not getting the pod in correct and then you get granules all over the machine which takes ages to clean up. I think the pods are easier to use in the DG.
Both are good machines, I prefer the DG now I've got one, but would still happily recommend the Tassimo.
HTH
x