Only a 10-15min easy walk from Domestic Terminal. If you come from International Terminal , take the free shuttle bus to Domestic and then walk, or train/Uber for a couple bucks. Some food places close by. 10min walk to a smaller supermarket. 15min to Mascot Train Station and all the surrounding restaurants, supermarkets, cafés. Friendly staff. Very clean room, spacious enough, comfortable bed, free amenities (shower gel, soap, shampoo, conditioner, body lotion). You can buy snacks, cup noodles, sandwiches etc. on the reception floor 24h. They provide microwaves, cutlery, dishes and places to sit there as well.
Only downpoint were the sink in our room which didn't work properly and the toilet flush button which was a little hard to use.