"It was a good time. You can bring a lot of things. There is also a nice spot to live," he told the Bundesliga's official website.
"But you have to get used too many things. I would have liked to have had more time and not just nine months but played the full season to evaluate all even better."
Of his Sounders dismissal, Tiffert added: "The club wanted to sign a new striker, as I should be paid on tariff. I was asked if I would be willing to cancel the contract.
"We then agreed financially. Finally, there were economic interests of the Association and no sports. I think that I have, very well done my thing for a European, too much new has happened there. I would have stayed. But if you go to America, you have to adjust to the fact that many unpredictable things can happen. That's all right. I'm not mad at my club."
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