I loved Montezuma so much I decided to stay on an extra few days on my own (my friend had to return to work). We had been staying at Amor De Mar across the street which is prime real estate, but I had to find more economical alternatives for the single traveler.
La Cascada was the nicest of the hotels I saw within walking distance to the center of the town. It was $35 for an adequately sized room (even bigger than the ADM even) and it was nice dark wood. I was really quite fond of my room and the place itself. It had a nice "shared space" with hamocks on the porch where you could over look the sea, as well as the street.
My stay was just fine there EXCEPT for one night which almost made me want to leave. You can hear people easily in their rooms in Costa Rica usually, and this was a Saturday night. The people in the room next to me were a bunch of young dudes who were drunk and who knows what else and they were up yelling, slamming doors, falling on furniture and god knows what else ALL NIGHT. I wanted to go over there and tell them to be quiet but I was truthfully scared to go over there as a solo woman. And I felt angry and resentful that the management who live in the hotel directly below them did not go up there to quiet them. Finally at 6am I went downstairs and asked them to go deal with the situation ( and i don't speak spanish and they don't speak any english so it was a bit frustrating to feel reassured that things would be handled well). I was concerned about the next night, but things were fine after that day.
That's it. Not a bad place to stay for the price.