It seems the existing threads are kind of old, so I'm starting a new one. What's the current best international SIM?

I have a FreedomPop SIM that I've had forever (but never used) and don't really know if it works. Plus I'd like LTE and I think it only supports 3G. Is there a good roaming SIM out there these days, particularly for France? I'm mostly interested in data but the ability to call someone would possibly be useful.

Thanks for suggestions!