If you have an older mac mini, some of the changes are not wonderful.  It starts up quickly and included software runs well. As soon as I bought it, I instantly realized I would need to purchase a bunch of accessories just to accomplish basic function.  Only one 1/8" jack for both sound input and sound output.  I had to buy a cable to split for an input and an output.  No, I dont have or want bluetooth anything.  Only a pathetic two USB connectors?  I had to buy a USB hub.  No SD card input?  I had to buy one of those too.  Also, the seller advertised free year of apple TV, I tried to sign up and got billed and had (so far) two hour-long tech support calls and still don't have the apple TV set up.I wanted to love this, it is underwhelming and disappointing.