As above, which sink is better?

There is no good or bad..It depends on what you prefer..

If you visit shops, many ppl will have their own version of pros and cons

Undermount-excess water can be easily sweep back to the sink. It looks better then topmount when installed. But if you want to change the sink if it is damaged, the whole worktop has to be removed. And that is very tedious process.

Top mount - sink sits firmly on the worktop..Easily changed if sink is damaged.

For me, i go for undermount...

not sure how a sink will spoil, mine already 20 years. think they really hardly spoil lah.

It depends on individual usage...

and is pros and cons of top or undermount of sink....

It depends on individual usage...

and is pros and cons of top or undermount of sink....

But is it more expensive to install an undermount of sink n r u charged for installing sink? Pipes aside.

But is it more expensive to install an undermount of sink n r u charged for installing sink? Pipes aside.

depends on what surface you are mounting.

Undermount in sink support

if you mount on those sink support (i.e cement structure), then they usually will charge you higher coz more work has to be done. They need to first do a wet cement slab, embed the sink in that, wait for it to dry, then mount the whole thing as undermount.

Undermount in solid surface

cost should be the same. not much extra work to be done.

For undermount sink, other than sink difficult to replace, is there any other cons?

me also want to know 

I would prefer Aura Undermount Sink! Because they have the special sink and installation method on the quartz. And undermount sink have more sleek design as compared to top mount sinks.