Walk ins are ok
Unless you have a large party walking in is fine. You may have a short wait but it'll be worth it. Great place.
Reservations are a good idea most of the year. Great place to eat.
Should book on typical busy nights especially if you desire a specific time. Otherwise it is large enough the wait shouldn't be more than the length of a drink at the perfect happy-hour bar.
Thanks! Your answer is awaiting moderation.