We thought it was great the first few (hundred

) times we went, but we seem to find less and less to interest us each time we go. In fact, the last few trips we haven't been at all (the Mall at Millenia is my current favourite).
It's a smart, clean (outdoor) "mall" along the lines of several in this country (Bicester Shopping Village springs to mind - they have several of the same stores).
Don't go with your expectations too high - as JohnnySharp2 says, it can be a bit hit and miss. I've bought sunglasses there a couple of times, but just because they were what I wanted - they didn't seem to be discounted. If you're in the market for Tod's shoes or handbags, you can definitely get some huge discounts - I've bought a pair of their signature driving shoes for $85 (I think the full retail price was $400+) and their "Eight" bag for 75% off the $1800 retail price. I wouldn't go as far as to say they stock the entire range, but they certainly seem to have a selection of the latest designs and they don't appear to be seconds.
In the past we've bought Timberlands for less than $30 - great value for well-made leather shoes, I think!
Some of the stores are fitted out and display the merchandise in the same way as a proper retail store; others are no frills (many have concrete floors) and resemble a jumble sale.
All in all, well worth a visit.