I used the $5 data pass daily for a week straight on a recent trip. It wasn't bad, but it was a little bit of a hassle to make sure you purchased the next one before the time ran out of the previous one, since once time ran out, it was really difficult to sign up without data.
I use the hotel wifi in the AM to sign up for another day. It worked really well, and I never went over the limit. I only travel internationally about 2-3 times a year, so it wouldn't make sense to do the global plan.
So, I can live with the five dollar daily sign up, but looking at Google Fi more since they made it such a hassle.