Three UK has a feature called "Go Roam." In many destinations around the world, Three UK charges £5 per day to roam as you would at home. This means you can use your data, calls, and text as normal.
Three Ireland on the other hand, does not offer any reasonable international roaming rates. As an example, if you're roaming in the US with Three Ireland, you'll pay €5 for only 500mb of data. You'll pay €1.41 per minute to make a call, €2.02 to receive a call, and 35c per text. If you don't opt for the minuscule 500mb of data, you'll pay €6.15 per MEGABYTE of data. This is terrible in 2022, and shocking that Three Ireland still charge such absurd rates.
Even Three Sweden offers roaming in 80 countries for free with many plans.
It would be great if Three Ireland could offer "Go Roam" similar to Three UK, so we didn't have to sell an arm and a leg just to roam abroad.