Hmm... this place is A-OK. There's so much choice downtown and in the immediate area in the Entertainment District that Milestone's would not be on the top of my list. Relative to the area, it lacks character. It is definitely a safe choice for large groups and consistency. As a personal preference, I enjoy intimate spaces more than I do the cavernous area that this restaurant inhabits.
The food is fairly good. I had a braised beef pasta which was spot on. It wasn't much to look at size-wise, but I was more than stuffed at the end. The menu is quite extensive. There is likely something for even the most picky of diners.
Milestone's isn't cheap, but it won't take your whole paycheck either. It's conveniently located in the Entertainment District, perfect for people watching with a delicious bellini in hand on the weekends as clubbers start to stumble in for the parties, and before you too join in the crowd.