Re: From Gunite to Vinyl...
Welcome to the forum!!
I've never owned a gunite pool, but I do have a vinyl IG...to me, seems that it would be much easier to keep up. Aside from obvious things like not letting the liner get ripped, there's not a whole lot of difference--calcium levels are not as important, and you have to be a little more careful about chlorine levels going way beyond the recommended levels per your CYA (see the "best guess chart" in my sig), but other than that, I can't think of any real differences, at least from a water quality point of view...
Janet
Re: From Gunite to Vinyl...
Just remember not to use a wire brush on it...or ever let it get empty. An empty gunite pool can "float" out of the ground, but not if there's no ground water. If you let a vinyl pool go dry the odds are you'll have replace the liner.
About every 5 years or so hard-sided pools seem to need serious maintenance, like re-surfacing or painting. A well-maintained vinyl pool can go 10-20 years without replacement, though at 10 you may need to think about a liner.
Carl