I needed a new phone in our bedroom and figured "why not just get a fax machine combo?" since there's usually a time here or there when I need to send a fax, but don't want to run over to a service company and pay $2+ to do it.  There are a lot of extra features that I'm sure I will never use, but it came in handy and was easy to operate when I had to fax 13 pages of documents to a school.  I didn't receive a "receipt" fax from their end, but their call the next day let me know they got everything.  Saved me the cost of a priority mail envelope to them with certified receipt!  Best for lightweight faxing duties, again, perfect for a small home office.