You made a home script, good job, it can be difficult, but... there are several bugs.
For example, there is nothing stopping me from naming a home the same thing and then losing a home (Especially with 3 homes maximum this is annoying) I could have used for something else, it also replaces that home's position.
Another thing though, there is no customization for this and not to mention the home limit is 3. The GUI is pretty blank and there isn't much you can do from it; you should add some decoration or background to it. For a first script I'd say it's good (The first versions of my home script sucked so bad and were even more buggy).
Improve the script for a 5 star :).

-Shock