Just had a quick-ish visit whilst waiting for the SQ lounge to open. Nice area, including a row of seats at the front that give a great view over the main (airside) area of the terminal (very similar to the view from AirNZ lounge, but setup better so you've actually overlooking it). Various seating around the lounge from tables and chairs to sofas and work chairs with a small desk. All up seating for maybe 120-140 people, give or take.

The time I was there is a quite one for the whole airport, so it's not surprising the lounge was basically empty - me plus 1 other group when I entered, and maybe 3 people more when I left.

Food looked mediocre at best, although that's possibly due to the fact the lounge was empty. Chicken cacciatore that didn't look great, roasted potatoes and one serve of mac'n'cheese that wasn't replenished when it was taken. Plus some pre-served salads and some nice look deserts. Staffed bar which seemed to have basic spirits/beer/wine but I didn't look too closely.

Toilets but no showers.

All up, probably a better option than the Plaza Premium 'lounge' (and I'm being generous with that term), but not a patch on either the AirNZ or SQ lounges so I won't be back unless I'm flying someone other than Star Alliance.