Pros: Though it's a short flight (only 3~4 hours), they serve a meal. I wasn't expecting it, so I liked it a lot.
Cons: Always delay for boarding. They don't have any personal entertainment, but only a small public monitor. Overall, the flight was "acceptable" but I didn't feel anything special or remarkable on this flight.
Somehow Kayak didn't ask me how the flight was for the other way (SCL to Lima), so I'll add my comments here;
The other way flight (from SCL to Lima) also got delayed, so we couldn't make it for the connection. They assigned us to another flight right away fortunately, but basically this connection is quite difficult unless it arrives a bit earlier than schedule.