1986 Urziger Wurzgarten Riesling Auslese Benedict Loosen-Erben

[samf10]

Hello I recently purchased this bottle as a gift for my father in-law who is a big fan of Riesling from the Mosel region. I also just learned he enjoys wines that are sweet as well. So I am wondering if anyone can help me with tasting notes on this 1986 bottle or point me in the right direction, does this bottle age well? or has it hit its peak already? The other bottle I was considering was Wehlener Sonnenuhr Riesling Auslese, Joh. Jos. Prum 2002 which has gotten excellent reviews. thanks in advance for any help