I just came back from FRA and I can confirm that the lounge experience is now much better at FRA. I used the new A-lounge and the renovated B-lounge (non-sch) and both were very nice. Plenty of seats, excellent selection and not the overcrowded chaos of old days. Lately most of my SK flights has been from the A-pier so position of the new senator lounge after A security is just perfect.
Transit in FRA as EGB has become much better