I have one for my wife, son, and I. It makes life so easy when people ask for an email address and I say firstname@firstnamelastname.com (and my surname is really short and really common). Invariably, some think you are some sort of uber hacker because you pay $7/year for this service.

And then they try to send mail to firstnamelastname@gmail.com :) I have a similar domain and people have a shockingly hard time getting it right: "Yes, "john" AT "j" followed by my last name, dot com"