I tried Vimcal for about a year before cancelling, but I absolutely loved it. Visually I thought it was stunning. The UI takes a little getting used to, but once I figured it out (with the help of their superb customer support), I was flying through it to get to the features I needed and used most. I only cancelled because I've moved to using Apple Calendar almost exclusively for personal and work, and they only support Google right now. If/when they expand, I will be back for sure. I felt it was well worth the price.
