I've been to Sam's Town twice, and many of the Boyd properties bowling alleys, and I must say this is the best bowling alley I've bowled at so far (although Red Rock does look better).
The lanes were very clean and the snack bar gave nice portions for the price and was located right by the front desk so you don't have to take a road trip to get there. The cosmic bowling was neat, except for there is really no light on the approach so picking up spares was harder than normal.
The only other issue we had was customer service, we had a group of 4 lanes and we wanted to split them into teams. However they weren't clear on how many people we could put per lane, so in the middle of our first game the lane shut off and we had to have the front desk transfer credits. This wouldn't have been an issue, but the way the two woman handled it was unprofessional, they were throwing their co-worker under the bus for ringing things up wrong. Granted next time I'll know to ask so we don't run into this again, but I felt bad for the poor woman they were bad-mouthing.