I got married in Cabo and a month later had a AHR it was at the Toronto Park Hyatt on their rooftop and it was gorgeous. We only had 50 guests and it was more of a cocktail party...apps were served and cocktails, we rented lounge furniture it was awesome, had a dj, set up alot of candles and roses around the venue.
My only recommendation would be to find a venue that is cozy if you're only having 50 guests just because you still want to make it intimate.