Highly recommend staying at the Sapphire. It seems to be the most high end accommodation in SPI (OK we didn't see everything, but from what we saw). They did a great job with COVID being polite but enforcing mask rules in the building. I was nervous about riding elevators before we came, but it wasn't too hard to avoid other parties and be the only ones in your car at a time (which is a rule, happily).
This particular unit was great. Very spacious for 4 adults. Would definitely stay here again. They had some things that surprised us (like beach towels), but didn't have some other things I might have expected (like games/puzzles). No big deal, just FYI. The kitchen was well stocked, beyond what you would imagine for a VRBO. However, the pantry was bare. This could be a COVID thing, so beware; there isn't even salt and pepper! We bought some and left it behind, but again, due to COVID it could be thrown out so be sure to pack every single condiment and spice you might need for your stay.
Next time I would bring my own pillows. They ones supplied weren't great, and I would have slept better if they were more high end. I know I am particularly picky about this.
I would definitely stay here again. Really, loved it!