I just did the same thing as PresRDC. My guide was a young woman who was a native and really knew her stuff. I think I would go nuts spending 4-5 days on Easter Island unless I was really into the history of the Moai.

The Vai Moana it is inexpensive and primitive but an OK place. No phone, TV, air condx or alarm clock in the room. When I found out that my alarm watch didn't alarm anymore I was a little worried about waking up in time for the 7 AM tour departure. I needn't have worried, however, as the local roosters took care of my wake up call. Being a city boy, I always thought that roosters crowed at sun up. The one's on Easter Island do -- but at sun up in Santiago, two hours east!

BTW, bring US$ cash to pay for the room ($40) and tour ($100).