Recently flew DRW SIN SGN with Tiger. Not sure what capacity they have on these A320's but leg room was a real struggle, the gf is quite short and she struggled with legroom I'm a smidge under 6 foot and would of been buggered without having a spare seat between us.
As a comparison to JQ Domestic JQ have a lot more comfort and legroom. Also the TR F/A's are more hardcore trying to sell inflight.
Flew back SGN SYD on the JQ A330 and was quite happy very good legroom, sure you had to pay for everything but when you pay bugger all for the flight I wasn't overly concerned with this. Oh and nice friendly F/A's
cheers