So I have heard nothing but good things about hitachi hitachi hitachi. I'm a power girl and thus I'm even more encouraged to spring money out of my wallet and make a purchase. But browsing through the site, I'm wondering if I could ask those who have used any combination of the Ideal, Acuvibe, and Hitachi to give an opinion on both. I like the idea of going for a slightly more modern upgrade, especially if it means less noise. But I don't want to lose power. Any advice?