Zuri Lounge is what I would call the "lobby bar" at the MGM Grand. I'm not a big gambler so, when in Vegas, I spend a fair amount of time here enjoying a drink and people watching. It is an excellent people watching spot.
They pour a pretty good real drink and have a fair selection of girlie martini like drinks.(remember, just because the bartender pours it into a martini glass doesn't make it a martini) . It's Vegas of course, so it's a bit pricey. Most drinks will run you around $10+.
They have a nice selection of single malt scotch including tasting flights. The bartenders are efficient and waitresses do the best they can given how crowded this place often is. It can be a bit of a zoo on weekends.
Grab a seat by the rail and watch the crowd!