Is Penn Foster legit? Are the diplomas really accepted in most colleges?

Me and my twin sister are 16 years old heading into 11th grade. We’ve heard online and have done some light research about Penn Foster, and found out that other people, who also only had two years left of high school, were able to finish both years in about 2 months.

We honestly are very skeptical about it and would like some input from current/ former students. Are the diplomas actually accepted at most colleges? We live in Florida and would preferably like to attend college in Florida so we don’t have to leave our family. Does anybody know which colleges in Florida except Penn Foster diplomas?

Any general information would be appreciated!!