Yes, sitting in hot water with jets going, it does feel great in any tub. Wet testing is really important for a few reasons, you will find out if you have a tendency to float (if I had bought because of price alone, I would be floating in a Jacuzzi, personally), or if seats are too deep (or too shallow, if you are tall, I am vertically challenged), if the jets hit the right spots, and I could go on, but I won't.
It was the second wet test I did which confirmed my choice. I was the most comfortable in my Vanguard, than any of the other tubs I tested. But that is my experience! Others have different spas they chose, but the wet tests confirmed the choice.
Good luck!