I've learnt my lesson when I bought crates of flat Philips batteries from them. Once bitten, twice shy. Surprised to learn they are owned by TWL though.
The philips batteries they sold were not alkaline, but the "heavy duty" crap that $2 shops and similar still peddle. Largly useless for most loads so may have appeared to be flat if you put them into a digital camera or something with a moderate load. See it many times at the day job with people getting them and putting them into a wax melting pen which will at best get slightly tepid warm on a heavy duty.
Best I have found for lasting, not leaking and price are the packs of varta at bunnings. There is also some number 8 at mitre 10 but I havent used them long enough to know if they take a giant dump of their slightly corrosive contents into your device when they run out like some other "name brand" ones have a habit of doing.
I knew they were flat because my basic wall clock stopped running after 3 weeks and remote controls stopped working after 4 weeks.