From my experience (about 10 to 15 trips from San Diego to Vegas) you'll need to be on the ball when dealing with Vegas approach.
Generally we used to come in from the south, overhead Henderson, then direct to overhead the numbers at KLAS (rwy 24), then a vector for a right downwind to runway 12 at North Las.
For ease, I would suggest you drop into Henderson for the first trip to Vegas. As your confidence improves and local knowledge improves, then North Las should be attempted.
If you have the money, then drop into KLAS. Last time I went in there with a light twin cost $80 handling fee and AVgas was very expensive. Around the $5 mark. Henderson and North Las offer shuttles from the terminal to the strip.
Approach to 12 - KVGT (North Las)
Hoover dam, one of many sights to be seen in the Vegas area.
