Sweet - congrats! I remember cackling like a mad scientist when I unboxed my Anita, I can only imagine the fun you're having.
One suggestion to try out - the bottomless portafilters are great to get a handle on your grind and tamping technique, but when you're comfortable, try going back to the standard portafilter to pull some shots. The bottomless was really valuable in training myself, but my results are better with the standard.
Nothing exciting on my coffee front, but I did just do something unusual - I threw away about 6oz of fresh beans. They were fuggin' horrible. I can usually adjust and get drinkable shots out of most beans, but nothing helped these - water just raced through the grounds like Montezuma's Revenge through a tourist. The good news is that they were promptly replace with some Blue Bottle beans, one of my current favorites.