I flew LIM-CUZ-LIM in May of this year. The service was reasonable, including a small meal service (cold box lunch I think). Expect a bit of chaos and disorganization at the airport, but nothing major. I think my flights were delayed both times, so don't schedule any close connections. All in all, I'd say a typical Latin American airline. I've also flown Aeropostale and Servivensa in Venezuela.