TvR - no, I know Lille Approach very well, and have no expectations. If you're VFR, and if they have your flight plan, you'll get a squawk. If they don't have your FPL, you'll get told off. That's it, just about, for VFR flights.
I always call them. If we're doing ILS practice into LFAC (top value!) then they'll usually set us up on the ILS before handing us over.
They've given me some excellent service routing down to Reims Prunay in the past, but that's a bonus rather than something to expect.
My surprise last week was that they happily accepted this bloke at 5000 QNH. Made me wonder if Trans Alt is different from what I'd expected. It is! I thought 3000, but since I'm not happy crossing La Manche below FL45, it makes no difference.