I bought 2 of the Zero G hoses (not the RV, just standard which are also rated for drinking so I'm not sure of the difference between the hoses) at Lowes 3 years ago and I have been using them ever since. I think they are great, haven't had any issues. They are very simple to store, just throw them in a 5 gallon bucket, I usually connect the ends so nothing crawls in, always did that the white hoses also. I guess I did have 1 issue, when camping near Las Vegas in July. The pad was concrete and the day temps were about 115 degrees. We did not turn on the water heater for the 3 days we were there. Took showers, washed dishes, never needed the water heater.
We normally drink bottled water anyway so it was almost a benefit not having to use the water heater. Both air conditioners ran non stop for 3 days, but the water heater wasn't needed.