I consider this an EXCELLENT bargain based on my visit in January.
The full normal menu is available and the service was great and the food great value, and very nice, on our visit.
I checked the menu and the most expensive items were normally $160 - so they understated the potential savings :)
Several members have documented their views here on OzBargain. Tip: ask for a little extra spice unless you like your Indian very mild, and (having read other comments) maybe service is better the earlier you get there.
the reviews aren't that good though…