Reliability was my main concern too when considering an eSIM for work travel. I found https://esimplus.me/what-is-esim while researching and it broke everything down simply. It turns out you can have multiple plans on one device, which is a game changer for travel. I set up a local eSIM for Europe and kept my main number active for calls. No dropped connections, and managing it through the phone’s settings was easy. What impressed me was the instant activation — no delays or lines. It saved me time and helped me focus on work without worrying about data limits or switching SIM cards mid-trip.