There are, in my opinion, some great features and one not so good feature. What I like most are these features:
1. You can play against AI and download/Share and then email to yourself and open with chess software, such as Hiarcs or Arena with loaded engine. You can then replay game and analyze. You can also do that using the Square Off App. I have not used the online features as I only play against the AI. Now that brings me to the next feature I like, the levels. Unlike Centaur that has just 3 levels, this one has 20 levels! You have ELO 800 up to over 3000. There are even more features but one feature I must say is not to my liking, the clock ticks for me after AI indicates a move. Now I have to move that piece and while doing so, my clock is also moving. While that makes sense for online play, not good for play against AI.
I've had the set for over a week and the board is still not perfectly flat. That issue is not deterring me from playing a game, just have to mention it as a minor annoyance.
The pieces are tournament size and look good. The board is easy to navigate and piece movement is generally okay.
Before making this purchase, I was hesitant to buy any chess computer requiring a phone or tablet. Now, with my new cell phone and 6 inch screen, I like the idea of phone or tablet. The phone or tablet works nicely showing moves on the board as well as the clock. I will say the way Centaur lights up squares is to me more intuitive then how this unit does it, though just a minor quibble.
Personally, I like this better than the Centaur unit. The features of more levels and replaying/analyzing on my computer with chess software and nice screen to see moves on board are the major differences. Of course, for those that like to play online, that is another feature this has over Centaur. With the price of both units fairly close with this being less costly, overall that makes this unit an excellent value!
Chess House ships fast! They ship same day you order, and their service is second to none. You can call and someone is usually there to help you. Great service and shipping time and my personal preference for making a purchases related to chess, and that is chesshouse.com