We had a great trip!! We visit the Big Island at least once a year and always enjoy!! Your place is very nicely situated on the bay. Much enjoyed morning coffee and breakfast on the lanai. Very nice spot.
We especially enjoyed the ocean-side pool... Great location with the crashing waves and usually quiet (ie very few kids splashing around). We used the floating mattress in the pool, the beach chairs and of course the little cooler. I'd fill it with ice and a few beers and head to the pool. Also spent a few hours on the black sand down below the condo, what a great spot to just watch the waves and veg!!
A refresh may be in order. But the layout is fine. One comment we both had was A/C would be a definite bonus. We've stayed in non-A/C condos before, but in the winter months when its a few degrees cooler. We really noticed it this trip. Once we got the fans going it was a little better, but even the evenings were quiet warm this trip.
Another thing specific to our own personal taste would be a TV in the bedroom. We tend to like laying in bed and falling asleep to a movie or something, but that's just us. For us, the mattress was fine, we sleep on a firm mattress at home and were quite comfortable.
I'd give it a strong 8.5/10, but on a scale of 1-5, its a 4.. A refresh and A/C would put you over the top. We much enjoyed it and will consider staying again (but maybe in the winter months) All in all, you've got a great little spot there!!