Barrie,
I'm also going on 14th. Have a month booked. Was the only way to get a 4 week ticket. Know goa well.
I have passed the DC before.
I have stayed in 2 star hotels in Goa before. They are OK if you just want a base. The staff will always run around to please (do tip them). They all do tea and toast free at breakfast but your best bet is have breakfast at a beach shack, they are cheap.
It's a 20 minute walk to the beach or 100 rupee taxi if you are lazy. Remember Taxis are dirt cheap in Goa.
What worries me about the DA is that it is an 'old' hotel (over 20 years), which is old in Goa. Things wear down quick in India. Might have that prison camp feel : ).
A lot of people complain about sheets being grubby in hotels. I've got to laugh because most washing is done a few miles inland and they spread the sheets on the paddy field to dry sometimes and occasionally get slightly grubby. Its the indian way! You also get pretty dusty in Goa as the earth is rich in Iron so there is a lot of red dust about. Don't take your best clothes and ladies don't wear high heels unless you want to look like a real idiot!