Ok, so what are the options for Mother's day?
Where is everyone going? What are the good places to take Mom. Looking for good food, and good atmos. Probably Mid town area.
Do most people reserve, or just wing it?
OMG, if you want to take your mother out for Mother's Day, you MUST make a reservation. Winging it will result in driving around from place to place and being turned away at each. It's one of the busiest restaurant days of the year.
Are you looking for breakfast, brunch/lunch or dinner? For dinner In midtown, Quince is lovely for dinner. Tabule is great, though more casual than Quince. If your mom likes seafood, Zee Grill is wonderful. I've heard good things about Mirabelle Wine Bar, but haven't been.
Honestly, if I were you, I would celebrate Mother's Day with your mother a day early. Make Saturday all about her. You will have your pick of restaurants.