Look everywhere, there seems to be a giant range and the facilities themselves are unpredictable so reviews are very important, the things I read can be horrendous. I'd say join Nextdoor where she is and maybe you can get good suggestions since lots of people store stuff, you might even find someone willing to rent you space or something much cheaper.
We are looking into it and the cost to move between states and store is absurd even considering high replacement costs. I think it might be cheaper to only take what I really want and donate the rest, truly our garage is looking better and better. Sigh, comparing the options is somewhere between jamming my pinky toe and catching my finger in a drawer.