The phone installed the eSIM instantly. The connection upon arrival in the country was immediate. Despite this, I recommend manually connecting to the phone company agreed upon with KeepGo and not using the automatic connection because it sometimes chose a company that did not provide data. Coverage (which depends on the corresponding national company, not KeepGo) is approximately 95%. For frequent use during travel, including posting photos on social media or even IP calls, it is excellent. As a precaution, I recommend downloading maps via Wi-Fi (Gmaps or OSM) in advance to save data. Even so, I still had unused data at the end of the trip.