Originally Posted by Amicus

M is most definitely in Henderson, not Vegas.
A taxi from M to the south strip (Mandalay) will set you back $40!

However, M offers a free shuttle four times per day to the Strip, drop off and pick up is at Fashion Show Mall, across from Wynn. Free, unlike South point, which will charge you $8 per person for a shuttle ride to the strip.
Oh, and M also offers free shuttle service to/from McCarran, the schedules for all shuttles are posted on M's website.