I suppose it's hit or miss, the max is pretty high, I wonder why they wouldn't have taken it.
I'd be very curious to see how they do it. I did minimum bids on both of mine.
The other time I did it I did a minimum +15 or something and got one. It was just PTY-MDE and the flight is < 2 hours but they do give you nice treatment and you beat the customs line which for a small airport can really suck at MDE because they don't have too many agents so if 2 flights show up at once it's slow. That said, the flight I was on happened to hit lots of turbulence, and I was in the last J row. I got 1 drink, and some nuts. That's it. Some people got 1-2 drinks and food, but she didn't make it back to me before the troubles. It was bouncy the rest of the flight, to the point where I don't think they picked up the garbage before landing either, obvs no one's fault, but it was a bummer since I had paid like $100 or whatever it was.