Have been living in Yishun since young. There are actually 2 Laksa booths in the same block(928) and they have swapped between themselves once or twice. Therefore the confusion and the taste.
The "Authentic" booth is the one on the right.
Great value for money even though there are no shrimps. Personally do not like the Hum so would order without Hum which gives a full egg instead of half and also more tau pok, fish cakes and crab meat.
The dessert store on the utmost left is very popular as well. Famous for it's ice being "Soft".
It closes at about 730pm for both the Laksa and Dessert. If Im not wrong, either Laksa or dessert is closed on Monday and the other is closed on Wednesday.