Jiǔ yǎng dàmíng duōshí, jīnrì zhōng dé xiāng jiàn.
I have long admired your great name; today I am finally able to meet you.
Tips
register
多时 is somewhat literary or formal. It is frequently used in classical phrases like 等候多时 (waiting a long time) or 久仰多时 (long admired). In casual speech, people might say 好久 instead.