My old contract € 90 € 35 now ...

I switched from the largest German mobile phone provider to Germany SIM and was skeptical at the beginning. Skeptical especially regarding the quality of reception. I did not quite believe it, that a saving of about 60% without (significant) losses was possible.
Ultimately, I was taught: it is possible. I definitely in the Rhine-Main area, the same quality of reception and pay a third of what I paid earlier in my old provider.
In terms of support services there is a small difference: Germany SIM bugging me NOT to alleged "collective innovations", "special" and other nonsense (as seen I wait for 9 years (!!) that the Telekom me is a contemporary internet connection and was instead littered weekly newsletters at special rates in terms of international telephony. Accordingly pleasing I feel now that Germany SIM leaves me here as a customer in peace and instead provides an easy to use website that represents me all important options succinctly).

Moreover, I am not bound by Germany SIM 24 months could cancel at any time.
Thus, there is for me not only "no appreciable loss" but ultimately no losses.
Or in other words: Germany SIM takes place in a completely different league as far as the price-performance ratio.

My conclusion after 3 months Germany SIM:
-attractively priced
-super reception (O2 network)
-übersichtliche site and an absolutely smooth device, described exactly (really easy) ...
-... Tariff adjustments are accomplished via website in seconds - know no other company where everything runs as smoothly

Conclusion: I can Germany Recommend SIM absolutely