I drank one of these about a month ago and it was still too heavy, malty and hoppy, to be distinguished as a Kolsch. At that time, and all previous samplings, this brew would have qualified as an ale or pale ale style. My notes graded it as a 2 or 2.5 out of 5.
Here's the update: I smelled this before pouring it, there was some vinegar smell and I noticed some hops residue inside the bottle neck. (As for the smell, I've been smelling sour liquids all afternoon.) The pour is clear gold with good head retention.
The first sip is very light but with enough body to distinguish it from an American Pils. (Just like a Kolsch!) The hops are very subtle, becoming more assertive in the body of the beer. The finish is a bit more hoppy. The mouthfeel is light and effervescent.
I still can not grade this beer very highly. I'm not ready to self-promote my brews, but I can give it a grade of 3.5. This was not the last bottle of the Kolsch, I will be able to share some with friends and get unbiased opinions. The boss, Sally, has already said that this is my best brew in years. Let's see if time has improved my Oatmeal Stout?