That must be considered to the nav though from the promo, you should still be given a good one even though it is not the best. 1. Pay attention to the air conditioner of the room. Because yesterday it wasn't fun because the air conditioner didn't work. So it's like karaoke in a sauna. 2. Please replace the mic because, the MIC looks like it's broken. 3. Local songs are lacking, even though regional songs should be mandatory 4. Services must be called many times before coming. I hope with this advice. Can be better for the future.