This is what I have:
"Reduce the cost of your booking by up to PLN 940.00 redeeming 30,155 Miles"

940PLN = 239 USD.

So, something similar.

Well, better then nothing if one can't use miles in other way like upgrade etc.

What's important:
it can take price down also for ticket for 2 pax, where number of miles (e.g. 30,155) would be to less to buy upgrade for two although enough for just one.