All-on-4 with my sister in May, trying to compare quotes

I am helping my sister compare All-on-4 Dental Implants packages for May and it is honestly more confusing than I expected. Some quotes include hotel and airport transfers, some include temporary teeth but not final visit, some write “medications included” but do not say what happens if she needs extra appointments. We are not asking for medical advice here, just trying to understand what practical questions people asked before booking. She is worried because one clinic replies in two minutes but mostly with short messages like “yes included dear”. Another clinic is slower, maybe next day, but sent a PDF with stages and dates. The price difference is not huge, so now we are looking more at communication and aftercare. Did anyone make a checklist before paying the deposit? I feel like we are missing something obvious, especially about follow-up once she is back home.