Be AWARE the shared limo service is no longer run by Las Vegas Limos, if this is the same service you are referring to. I always used them and just got back from LV last weekend (yes only to turn around and leave again today) only to find they do not run this service anymore. Do not be fooled by going to their stand and buying a $4.25 ticket. You are buying a ticket on one of their buses, which, depending on where you stay may take up to an hour to get to your hotel. I stayed at Paris last weekend and it took over an hour after all the stops we made. A cab is by far your best and cheapest option.
If you have never stayed in LV before and are staying on the Strip, tell the cab driver you DO NOT want to take the tunnel. Trust me, I just saved you $10 off your cab fare.