Just came back from Batam, the exchange rate at harbourbay ferry terminal is 8950, don't change there. Go to Nagoya Hill Shopping Mall, the rate there is 9000. For BCS, the rate variety from shops to shops. Saw some with 8950, some with 8980, try the money changers across the road opp of BCS, near the 古早味肉骨茶.
Just try this "古早味肉骨茶" -38k Rupiah in the morning 20th April, shiok.
Also try Acia Ikan Bakar (Open evening time) on 18th April, i order the Aloe Vera drink (8k Rupiah) which is nice also. Then i order Char Kway Tiao (Forget how much) and Oyster Omelette (25k Rupiah) & some String Ray + 1 Red Grouper (Total 112k Rupiah for the fishes).
As for selection of girls, the prettier one not much, and yet there always customers in New Berry (Avoid This Place!).

You can try others like the ktv joint (Forgot the name) beside the windsor foodcourt for pickup of girls or Sedona mention by some bros.