I've heard many glowing reports from snowbirds that have done that, but I think the best advice yet is to get word of mouth from those in that area/park. The internet is nice, but it sure doesn't replace the ability to size up a person that is giving the free advice to you (me included.)
My dentist of 15 years just retired late last summer. I told my hygienist during the cleaning that if I don't like the new replacement, might have to give Mexico a try.
She then told me that my retiring dentist just replaced a full mouth of crowns for a patient who had them done in Mexico (don't know where.) Did it all at cost(he's really a good dentist/guy)because he felt so sorry for them and they were in pain.