Skip-Bo is a blast to play because of how fast it moves and how many different ways you can play it. Nevertheless, it could use more features or in-game currency. A good place to start is with themed decks and avatars. Another thing that could've made this game a hit from the get-go would have been to include the ability to play with friends from the start.
If you're a fan of solitaire and cards, especially Spider Solitaire and Klondike, give it a shot. You won't be dissatisfied with this.