We are planning a trip to Poland, and rather than fly Ryanair or something from Oslo we were just going to take the Norwegian connection to Poland. Well on that day the only flights go to Szczecin or Berlin. I figure we can fly to Szczecin and then take the train to Wroclaw. As a side note I wouldn't be opposed to spending a day in Szczecin if there is enough to warrant a day when we only have 6 usable days. I would probably drop Wroclaw if we did Szczecin. We plan to end the journey in Krakow since that is the only Norwegian flight back to Oslo that day to make our flight home. So if we did jump on the train to Warsaw or Wroclaw from Szczecin it would be and EIC or IC train. I plan to avoid the TLK trains if possible. Here is the possible plan.
Szczecin -> Wroclaw on EIC/IC
Spend a day or two in Wroclaw.
Wroclaw -> Warsaw on EIP train.
Spend a few days.
Wroclaw -> Krakow on EIP train.
I know I have rambled a bit, but I am trying to find out if those trains are enjoyable. I know the EIP are the brand new ones. Also should we expect a dining car on an EIC/IC train? For instance it would save time on the travel day to eat on the train from Szczecin.