We adventured pretty hard the first half of our Maui trip, and I was so happy we stayed two nights in Hana. I definitely recommend staying at least one night, there's just WAY too much to see/do in one day.
The condo was beautiful, and the view is great. It was hard to tell in the picture if the building below would block the view, but it didn't really bother us, you can still see the ocean great, and the little beach you can access on the property is fun to explore. If you have kids, ask for fish food to feed the Koi at the front desk, the kids love it. I accidentally booked for 2 people, and they only gave us 2 towels, and NO extra bedding, so be sure to book for the right amount of people, there are zero extras of anything in the condo. (They graciously helped us out the next morning, so the hospitality was excellent.) Our favorite feature was the window from the kitchen to the Lanai. Sunrises were wonderful, even if it's cloudy.
We loved the food cart and fruit stand 5-10 minutes before you reach Hana (really yummy pizza), and fabulous outside dining area. Don't forget to make a reservation if you plan to visit Wai'anapanapa State Park, they have people checking at the gate. The freshwater pools are NOT open, so plan to just walk around the park. Pools of 'Ohe'o are also NOT open (when we visited in April). We LOVED Hamoa Beach, one of our favorites on the whole island. We thought the Garden of Eden was well worth the price of admission (we walked all the trails), and if you missed the bamboo forest and rainbow Eucalyptus trees at the beginning of the road to Hana, you will see them here.
If you are on the fence about the backroad to Hana, we did it in a very old rental sedan, and it was totally fine. It's slow going, but nothing crazy. I was nervous about it, but was pleasantly surprised by how easy it was. (Do drive clockwise though, you don't want to be next to the ocean!)