Yeah, it was my understanding that the gas stations all have rapid fill and the "garage" version is a slow fill. I don't have that option to fill at home because we just have electric. The average size tank can run 250 miles, so I would just have to fill up weekly.
For those interested, you can find where a station is near you here
Are you planning on doing the conversion yourself? I am somewhat mechanically inclined, but I know I would run into problems, and in the end, there is a good chance something would be installed incorrectly. However, I would have a lot more knowledge of the inner workings of the technology if I did it myself.