Mark's place was great for working remotely and visiting the big island.
Waikoloa village location is very good to visit both sides of the island and is at a bit of elevation. In our experience that was much better than staying in Kona where it can get way hotter and humid. We never felt the need for AC and barely turned on the fans, even during the day. Amazing beaches are only a few minutes drive away and Mark provided beach chairs, mask, snorkels, etc and we added a beach umbrella :)
Kitchen is very well stocked and all sorts of cleaning products were provided so that we didn't need to buy anything for our month long stay. Also, the apartment was spotless when we got there.
The wifi worked fine for two people on video conference at the same time.
Highly recommend.