Well, I won't place a bet, but I hope you go with HS. I think you'll love it, and it would be nice to see reports on your experience.
In any event, I have a feeling that your first report will be something like this: "The spa was delivered and installed by daylight this time! And I didn't have to be out wiring by flashlight at midnight, I got the sub panel in advance and had it ready and waiting. After a couple of uses, we really miss (put feature here), haven't gotten used to (another feature here). But we love the (type of seating) and really don't think we'll use (another seat here).
The waterfalls (and/or fancy lighting, etc.) adds more to the experience than we expected, and my wife loves the color "we" chose.
We'll see how our energy bill changes, and how much it cools if there is a power interruption this winter...
