This is a great deal. Just be aware that if Zipair has operational challenges they typically end up cancelling flights. When that happens and its popular time (eg holidays) they just refund you without much customer service so you may be left on your own to figure things out. Happened to a friend who was booked to fly back to the US on them after his inbound plane encountered mechanical issues. Their only option for him was a refund or flight a weeks later if he didnt agree to downgrade to economy with partial refund (low due to costs of tickets) and even downgraded flight was a 3-4 days later. So maybe be worth it to have a backup plan.