Been to LS in Phoenix a few times. Everything from a party of 25 (with kids) to a group of 4 entertaining out-of-towners.
Each time was a success but that success comes with a price.
The bowling is expensive. $40 per hour for the lane plus shoes; we dropped $60 before we even ordered our first drink. That being said, you're paying for atmosphere and the decor is great, as is the service. Very attentive and they seemed nonplussed by the children running around. That's always nice (sometimes you just have to bring them along and kids love to bowl, right?)
Their menu is impressive as well. When my foodie friends come to town and decide against bowling because they hate "bowling alley food", this is a great option because this is definitely a few notches above typical alley fare! My favorite items are the Pretzel Dippers and the Chicken Pillows. Burgers are quite tasty as well. My husband had a salad that was spicy and satisfying. Food and drink prices are reasonable.
I've never been to their happy hour, but am planning an outing in the near future!