No, Mase and Co is not halal. The restaurant's own website and promotional materials clearly state that they have a 'fully stocked bar' and serve a wide variety of alcoholic beverages like wine, beer, and cocktails. This makes it unsuitable for diners looking for a halal environment.

Yes, Mase and Co serves alcohol. Their website explicitly mentions a 'fully functional bar'. Furthermore, the owners' other establishment, Mase Cafe, has a menu that includes pork items like bacon, ham, and chorizo, indicating that the business handles pork.

There is no information to suggest that the meat is hand-slaughtered (zabihah). Given that the restaurant serves alcohol and the associated business serves pork, it is highly unlikely that they would source zabihah meat.

We did not find any information about a prayer room within the restaurant. You would need to find a nearby mosque or public prayer facility in the Merrylands area.

While the restaurant is suitable for large groups and family gatherings in terms of space, it is not a halal environment due to the service of alcohol and the handling of pork by the parent company. It would not be an appropriate choice for a Muslim family gathering.