Miami is my home base and for years I've heard of the 'iconic' Biltmore Brunch', so we tried it. If you are a person who values quantity over quality, you'll like it. If you don't mind awful, thick champagne flutes into which is poured good quality French Champagne, this is your place.
There is no finesse, a guitar player connected to a synth-orchestra machine, mediocre quality meats, pre-frozen shrimp, the juices are not freshly squeezed (the OJ reminded me of the frozen stuff you used to buy and mix with water), poly-blend napkins, ugly tableware and no indication of where the line begins for each food station (there are nine), so people from the left and people from the right converge on the staff behind the stations, making for uncomfortable 'who is next' issues. The quality of the food vs. the $75 p/p price makes this a clear loser from a 'value for money' perspective.
I recommend you try The Setai on Miami Beach instead. Fine linens and glassware, a jazz trio with no synth, a much more elegant environment, and food of a completely different quality (ie better) catagory than the Biltmore's just OK selection of cheese, meat cuts, pasta (especially poor and boring) and so forth.
Didn't appreciate seeing several employees on their mobile phones behind the stations during slow minutes, and an overall ' let's get this over with' staff attitude.
Om the positive side, napkins were usually refolded when leaving / returning to table, and the Mumm's Champagne was a good quality and offered frequently.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.