We stayed at Saul's place for 2 weeks, and felt really at home there.
The house:
When we first arrived in the evening, we were met with an inviting home. Champagne awaited us in the fridge, and as we walked from room to room, there were surprises and thoughtful touches throughout. Local soaps from the farmer's market, plus everything you'd need for a shower in the bathroom. Books, binoculars (for whale watching!), and a well-written host book from Saul in the living room, a fully-stocked kitchen with every gadget you could think of (including spices and even some food staples).
The next day we woke up to an even bigger surprise when we saw the view - WOW! You feel like you're on top of the ocean. The deck has many options, a spot to enjoy breakfast that feels almost cantilevered right over the waves, a covered portion, and a sunbathing deck zone. Being sun wimps, we opted mainly for the covered portion, which also has a partially enclosed (but still spectacular view) area. This enclosed spot was great for both sunny and rainy days. We stayed dry and warm on those more blustery days, but still got to enjoy the beauty of the ocean.
The outdoor shower was fantastic.
The home itself is a mid-century charmer. It's an older home, but with plenty of character.
The location:
The home is perfectly situated for quick access to all that Hilo and the surrounding areas have to offer. It's a quick few minutes to downtown Hilo, so it made thing really easy - we didn't have to feel like every time we left the house we had to pack for an expedition.
The neighborhood is lovely and quiet. Oh, and as others mentioned, the walk to Honoli'i Beach that Saul recommends shouldn't be missed.
Nearby:
Botanical Gardens, Carlsmith & Richardson Beach Park, Coconut Island & Asian Rock Garden, Akaka Falls, Rainbow Falls - all of these are so close, and are just some of the places that make Hilo so special.
The one issue that cropped up (at the very end of our stay) was a small leak in the kitchen from the roof. It happened during a particularly rainy couple of days. Saul was very responsive, and took it very seriously.