We meet and greet every guest, except when they arrive late, say, after 22:00. We have all the key code entry things and a well oiled procedure, so that's not a problem.
Aside from the obvious good relations meet & greet facilitates, our home is a "smarthome", off grid solar powered, so we need to introduce most guests to the special nature of all that, and show them how it all works. It's all very simple and uncumbersome, but for many, it's different and unexpected, so it's important that they get a bit of an introduction.
Aside from that, we also have guest services vendors who can (optionally) provide daily cleaning and/or private chef breakfasts, lunches and dinner, shopping services, horseback tours, and even hot air balloon flights taking off right from the villa. So, we also introduce those additional services to the guest before and when the guest checks in. Our last guests hired a chef and cleaning services for every day of their stay. They didn't have to do anything but have a holiday. The ones before that booked a balloon ride from the Villa to the South coast.
For some, that's what a real holiday is all about. 😎 We feel lucky that we can provide this level of service. But then, aside from the nice personal touches, it's still a business, and we have to be competitive.