For beginners, I can't answer about OBBR.....however, the restaurant you're referring to is Daniel's By the Sea. It's Mr. Busby's by day and Daniel's by night. Very good restaurant.
Re: Westin......we've been there during the evening w/o issue. Great people watching. LOL. We stay in O.P and often go there to have a drink at night. Some gambling....not the best but hey, it's entertaining. Also, don't forget Dinghy Dock for a casual night....on the water and has a pretty decent happy hour from what I've heard.
Plenty of other terrific restaurants in O.P. you don't even have to leave the area, now....but, so much more to do that you'll want to....;-) Enjoy!!

<img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" /> Contessa