Generally no. Considering a water softener purchase, keep in mind a softener will remove the calcium and magnesium (hardness) from your tap water but these essential minerals will be replaced with sodium (salt) in your tap water. While this does not improve the healthfulness of your tap water, it will cut down slightly on soap and detergent use. A softener does eliminate scale build up around your kitchen and bathroom fixtures but a minimal improvement compared to the expense of a softener.
Softeners do increase the corrosivity of water and are often implicated in increased lead and copper levels in homes with these plumbing materials. Finally, if you decide to purchase a softener, please invest the time to flush it out after being away for more than a few days. This reduces the number of nuisance bacteria that are present inside stagnant softener tanks.