I have frequented ZuZu numerous times for dinner with family or friends and never walked away disappointed. While the food is essentially simple it tends to be very well done as you would expect for the price.
The iceberg lettuce wedge salad was absolutely ridiculously big, I suggest splitting it unless you plan on grazing for awhile. The grilled salmon, ahi tuna salad, and beef stroganoff have all been proven to be consistent palette pleasers and the Bourbon Mac Daddy from the bar was perfect. Dinner service has always been prompt and friendly but not intrusive. Obviously, a booth is quite nice for a small party or a couple on a date, they are relatively cozy, somewhat quieter than the main floor, and have excellent lighting. The decor is relatively contemporary, as you would expect in Scottsdale/Valley Ho with a sprinkle of Frank Loyd Wright's influence in the central columns, but largely has a very relaxed and warm feeling. As a springtime alternative they also have a wonderful outdoor patio.
ZuZu is quite popular on Friday and Saturday nights thus if possible I strongly recommend reservations or trying to go on off peak days for a more enjoyable dining experience. If you do decide to pop in at the last minute and are faced with a consequential wait there is a very relaxed bar adjacent to ZuZu in the lobby of the Valley Ho which you could easily pass the time.
Cafe ZuZu website (menus and reservations are all online):
http://www.hotelvalleyho.com/content/fooddrink/cafezuzu.html