My tub is on order, and I am busy clearing a few trees etc from the site; found a great electrician, talking with cement contractors et al. So, I am no tub expert. Another thank to the posters who have been so helpful in this project.
When shopping however, my wife and I really liked the tubs with domed jets in the footwells. Some call them volcanoes? With more than two users, they give each user a place to put their feet besides someone elses lap. Not that the occaisional "Who's foot is that?" is a bad thing.