You don’t actually have to use the Burpple voucher, as the 1-for-1 offer is there even for non Burpple users. The beef gyudon, or pork buta don set with the pudding dessert was 16.90sgd for 2 sets. I came wanting to get unagi don, but its +$2 more for smoked duck don set, or +$5 for the 1-for-1 unagi don set, so i stuck with the beef don instead.
Pretty generous portion of wakame, but the beef was quite sparse althought it looks spread well across the bowl (2-3 scoops and i was done, and I’m not a huge eater).

Id say not too bad because it came with the pudding, and definitely something to consider, but don’t expect to be super full unless you are a small-regular eater. Just satiated/just nice.
Try it!