I have been using Hannabach Pure Gold 825 MT for well over 10 years(?). I play a LoPrinzi Spanish Grand Concert Cedar 650mm. The reason I initially started playing the "Golds" was that my hands sweat a great deal and the sweat was very corrosive to the strings. They were the only strings I found that could withstand a rigorous practice regimen and not fail after two weeks(intonation/tuning). In the last year, I started using Dunlop 65 String Cleaner and conditioner and I find if I clean my strings after every practice session, I can get 6 weeks on a set of "Gold" strings playing 2-3 hours a day before intonation/clarity becomes a problem. The "Golds" are definitely a darker sound and lately, I have been experimenting with silver wound strings of various brands to get a sharper/cleaner, less rounded tone in the upper register which tends to get muddy on the H's when playing a Cedar guitar. However, I think if you have a Spruce guitar or a brighter Cedar, the Golds would be a perfect match if you can justify the cost. In any case, the H Gold's are a true quality string and I would recommend them highly.
"And those who were seen dancing were thought to be insane by those who could not hear the music." Friedrich Nietzsche, Thus Spake Zarathustra