It is an interesting concert to own in a collection, but not a very enjoyable listening experience.
Interesting because Elvis breaks out of his usual routine and does a few rare songs. Among them "The Wonder Of You", "Hawaiian Wedding Song" and a few lines of "Rip It Up". James Burton fans might wanna hear their idol playing Joe Cockers "Delta Lady" as his solo that night.
Other than that, this show is below average, even for 1977. Elvis is uninspired and bored and seems to have completely lost his interest in a strong performance. During "See See Rider" he misses his cue to the second verse and just stops singing. The band then continues on their own. Strangely, the audience reaction still seems to be good.
The sound quality is good. One can hear no trace of editing, however the CD misses two songs of the original show. It has a simple cover with some typing mistakes on it ("Clossin Riff" and so on). Printed on the backside is a flag of Chile with the inscription "Este CD esta Dedicado A Todos Los Fans De Elvis En Sudamerica".
Buy this only if you already own so much 1977 records that you can't go back anymore

(or if you are interested in the bonus tracks).