Terrible. Lazy shovelware that is not worth playing at any price.
Game plays very slowly with animations between each turn. Does not track used tiles (you have to do this yourself, on paper).
No option to use the tournament wordlist (i.e., no swear words). No option to supply your own dictionary.
AI is garbage. Its only strength is perfect word knowledge. It's easy to bait the computer into throwing away blanks and S's for low points.
No tools to help you improve your play, like a reviewer that recommends better moves. Of course this would require a real AI.
No actual multiplayer. Hotseat play is stupid and broken in a hidden-information game like Scrabble.
If you want to improve, there are better single-player Scrabble programs and most of them are free.
If you want to play against many people, there are Scrabble games with real multiplayer and some of them are free.
If you want to play against people in your house, buy a Scrabble board.
If you want to spend $5-10 on a video game, there are much much better values for your money out there.