The mini barrel service ruined two cask strength bottles of whiskey.
They were left in the barrel far too long and went black. I eventually called and arranged for pickup after no contact after dropoff. Completely undrinkable, even with me taking the whiskey out of the barrel immediately once I got home. Pictures for comparison with a standard bottle.
Whiskey was also not returned in the same bottles, which I really was disappointed with. This is important for anything cask strength.
Sorry, can’t rate this any higher.
*Edit given owner’s response: review stands as written. Neglect is not the customer’s fault here. In almost every other service where a product is dropped off (ex. Skate sharpening, bike repair, etc.) notification is typically implied to inform the customer that the product is ready.