Ars Technica did a review of it, including a XP SP 3 virtual machine. It came out better than VM Ware in most of the benchmarks, especially the game ones.
http://arstechnica.c...he-ars-review.ars
If the user plans to run any old DOS games, check out Boxer. It's a Macified DOSBox.
http://boxerapp.com/