Convenient location: Kihei is closer to the OGG airport, Hana Highway, Haleakala, Molokini tours etc compared to, say, Lahaina. The resort is a short drive from shopping, restaurants, beach equipment rentals etc.
On-site: The pool was useful for those days that we wanted to stay in. The beach is also right there. But there are much better beaches a few miles down the street.
The unit: We didn't miss anything - from kitchen utensils to beach umbrellas, it was all there. Pool towels, bath towels, washer, dryer meant we had to pack fewer things.
AC costs an extra $25 per night. I'd never seen that before. But there are fans everywhere, so we didn't really need AC.
Check-in was smooth, and we could get in a couple hours early.
Overall, a good experience. Would certainly recommend.