I looked under the panel of a Hot Springs Jet Setter and well one of the screws was placed wrong and got stripped, then once they got the panel off it well looked very messy inside. The Sundance had a nicer, clean cut on the inside compared to the Hot Springs and the side panel was easier to remove for easy access on the Sundance... Maybe take another look under each one again before making your final decision. Also, take a look at the warranties, I believe Jacuzzi has the longer warranty, plus you probably should go with what your wife wants to make life easier for you....Other will probably say apples to oranges on the warranties...This will be a hard decision for you so take your time and write a pros and cons list. I have my pros and cons list started.
Good luck with what you decide on...