Overall, bad signal and no customer service. I have also contacted your customer service, but did not get any assistance. The signal went of frequently, while other people around me had data. I often was trapped, when needed signal / data. Website and google maps loaded slowly.

Couldn't get esim to work in Vietnam Couldn't get esim to work in Vietnam, desperately bought another one from Onesim - same issue, wouldn't register on network. Bought another from a different provider and it worked straight away. 2x money wasted, happy to provide details of other provider if anyone wants it

Excellent service at a great price Excellent service at a great price. Kept me connected in London and again in Ireland at a fraction of the cost of my US network.

Good network coverage Good network coverage, but inaccurate data counter. Purchased two esims from Onesim of 10GB and they both stopped at 9.3GB. Not good.

If I could give a zero rating … If I could give a zero rating, I would. I have no idea what went wrong, but you charged me for an eSIM you never delivered (refund email sent for order 18807). I sent an email for help on 31 Mar that was never answered. Customer experience doesn’t get much worse than that unless you burn my house down.