I recently flew FRA-JNB on LH 572, returning from ABV a few days later on LH 595. I used MyOffer to bid 200€ for a premium economy seat (my original fare class was S) and the offer cleared a few days before departure. Upon check-in, I was upgraded to business class, probably on account of my *G status and because the flight was clearly very full in coach. The return flight was already pretty full when I booked it (my fare class was B) and I was upgraded at the gate to business class, despite the fact that only my FTL card was in the system at that stage. I had looked at MyOffer for that flight as well, but since the bids for business class started at 480€ (no PE on that flight), I figured I might tempt fate and hope for an operational upgrade. In summary, I was very happy with MyOffer, despite the fact that I have still not actually flown Lufthansa's premium economy