Lived here since 1991. Have had kids in both private and public schools. Your kids will get out of school what they put into it, no matter where you put them. Had a daughter in LISD and was blown away at the staff and how they worked with her. My son went to private K-12 and is about to graduate from Texas A&M, was totally prepared for college.
Again, if they work hard, any place will be fine. And if they don't, it does not matter where they go to school.
As far as the move, love the town, the people, and do not regret living here for a second.
There may not be time to do the job right, but there is always time to do the job over!!