Diablo's was a Disappointment!  I wanted to have a relaxing dinner and a few drinks with a few of my colleagues from work.  We decided to give this place a try since none of us had ever been here before.  To our surprise, the service was terrible and slow, the appetizers were the greasiest things I've ever tried, and we were so put off by this place that we actually didn't even order dinner.  Not to mention that we were sweating bullets in our seats, I get that LV is hot but crank up the air for your customers.\n\nWe were seated promptly by a hostess at the door since we had a reservation.  We were a party of 12 and they had a nice big table set-up for us.  The waiter then didn't appear to take our drink order for at least another 10mins.  Then he didn't come back with our drinks for another 10min.  We knew we were in for trouble at this point so we ordered our appetizers quickly since we assumed there would be a wait.  We waited about 20min. before we saw our waiter or our appetizers again.  At this point we were 40min. into the meal and hadn't even been asked if we wanted an entr\u00e9e.  We all agreed to eat our apps. and get out.  30min. and a burger joint later, I finally got to eat dinner.  \n\nI'm sure this place is a good place to grab a beer on the strip but don't go here with expectations that the food or service will be good.