Hello there,
To be frank, if the right humidity and temperature are constanstly monitored which never exceeded +-10%, and regular service and regulations for any brand of harps will ensure the instrument durabality. I have a friend who owns a brand new steinway concert grand but he didnt take good care of it. And living in such high humidity by the sea. Thus, his piano got constantly stuck due to stickyness and swelling of some joins. And rusty bass strings. He complained that to steinway company and they cant do anything. Any instruments can be the most expensive or cheap but if there is no proper caring of the instruments. It will surely gone wrong.
Best advise, go to the store or shop and try if out. See if there has any “emotional” connections to you. Then you will pick the instrument . Otherwise just keep on hunting and search!
Have a great day!