I came for the AYCE wagyu and was really impressed by the quality of the meat. Both types (Australian and US wagyu) offered on the AYCE menu were delicious, but I had a slight preference for the Australian - amazing marbling that melts in your mouth. I also tried the kagoshima Japanese a5 wagyu, which came as slightly thicker and longer slices of meat with even more beautiful marbling (extra charge $95 for 300g and $65 for 200g). I would definitely recommend it if you are okay with doubling your bill, but if you're on a budget the regular wagyu is almost as good. The veggies were also fresh and delicious - especially loved the honey sweet potato (but on the menu it said this item was limited)
As for the service, it's a really busy place with a full house and line ups. Sometimes it's a little difficult to get a server's attention but I had no issues with the speed of service.
Overall, I had a great experience and preferred this place over gyubee. My only wish is that they had a downtown location... :)