My LTE account has been activated yesterday, without any problems. The signal is quite good (4-5/5 bars) and the bandwidth is much better than with DSL.
DSL 1,5MBit Down 224k Up (measured values)
LTE 39Mbit Down 4Mbit Up (measured values)

Much better !!

But I had some concerns about the latency of LTE. Will it be worse ? Will it impact loading of web pages with many small files ?
The answer is NO !! The latency is even better than with my DSL before.
See the following chart where I compared the ping round-trip times:

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