We used Roam Like Home when in the US, fairly cheap at $5/day. Used it a couple of times in Costa Rica but we were on wifi most of the time at the house we rented so ended up using cheap VoIP as needed, way cheaper than $10/day.
Anyone who defends this convenience-over-privacy should download and print Jihadi-type information, nuke plans, bio-weapons info, etc. through this service and see how long it is before there is a knock on their door.
Who on their right mind is going to spend hundreds of dollars for some minor functionality?
Back in the 1980s, I remember thinking "If only there was a way to have my girlfriend (at the time) send me her pulse so I could feel her love on my own wrist in real-time. Of course the technology wasn't there, and wouldn't be for some time, so I had to settle for her bloody heart in a jar and 25 years in a psychiatric hospital.