Originally Posted by mauld
I flew SQ on a fully paid F JFK-FRA-SIN last year, and at FRA all F passengers were escorted via little carts to the UA F lounge between flights. We were not given access to the LH F lounge, and the UA F lounge we were taken to is very small and cramped. Nothing special about it, some chairs, tv's and the usual assortment of beverages that you'd find in an airport any lounge anywhere.
Thats related to the fact that your flights SQ025/026 were coming from/going to the US which means the C section of Terminal 1 in FRA. No LH SEN lounge anywhere close by in that part of the terminal therefore UA RCC.
Back to the OT. If you can't get LH FRA-SIN and use the F terminal in FRA then I would seriously consider getting the whole FRA-SIN-FRA portion on SQ in F. No need to fly LH F SIN-FRA if you can get a seat on SQ. LH F is nice but SQ F is certainly better. If you want to try LH F then feel free to go for it otherwise choose the superior experience on SQ.
Cheers ...