I've been there only once, it was a rainy day but it was really worth it.
Loads of fresh produce, both organic and conventional.
The prices are better than at the supermarkets and they also have offers when buying more.
I bought some delicious cucumbers, oranges, carrots, salad, radishes..fresh and in season.
It's easy to get there by car (use a map or a gps), and there's also a bus stop right next to the parking lot where the market is, check out www.samtrans.com for bus schedules.