eSIM installation in Ukraine was smooth.
APN was set automatically and correctly - Plus.
Automatically connected to unsupported network lifecell, changed manually to Vodafone and it started to work.
Speed Test results with Vodafone (47.91 Mbsp / ping 99 ms)
Poland: Automatically connected to Plus network. APN - plus automatically. Speedtest result - 94.69 Mbsp / ping 41 ms.
The Netherlands: Automatically connected to NL KPN network. APN - plus automatically. Speedtest result - 49.21 Mbsp / ping 97 ms.
Spain: Automatically connected to Vodafone ES network. APN - plus automatically. Speedtest result - 141.51 Mbsp / ping 126 ms.
I tested eSIM very thoroughly and often did Viber video calls.
Very fast connection, good quality everywhere.
No need to set APN manually; it connects automatically to needed networks (I faced only one small issue after activation with an unsupported network connection).