Since it is an integrated spa, there would be a lot more to it than just a snow shovel.
Back to the original question, I don't know that there is a set standard for the jet height, but mine are about 6" off the bench and hit me lower/mid back. I like my integrated spa and use it quite often, but don't expect it to have the contours and jets of a stand alone fiberglass spa. Also, since your pool is already completed, I'm not sure you have any easy solutions to raise your jet height.