The place really looks like the usual natural scenery that you can find in countryside places of Japan except that the way it was being taken care of is impressive. I went there twice in different seasons (spring and fall) and yet it was able to offer unique views to old visitors. The falls itself is a must-see during the spring time where the water level is stronger and the tulips are in full bloom and during fall where the waterfall is less pristine than it used to during spring, the natural grown plants and small flowers around the area compensates for the other things that are missing.
The place is also known in the area as a good place to buy natural honey. From the main road going to the waterfalls, just cross the hanging bridge and walk a little but up and you will find a small store selling premium quality honey ranging from 500-1,000 yen. Small events from time to time are also being held in the vicinity of the waterfall to entice the influx of visitors. From Oita City proper, it can take you approximately an hour to reach Harajiri waterfalls if you will take private transportation. With free entrance, it is worth a visit most specially during spring time.