SLS - Style, Luxury and Service... This property is newly remodeled and a great value but I don't like non themed vegas hotels. I like volcanos, pirates or any other goofy theme. I'm also not a fan of the neighborhood that is so far north but the historic value of the property makes up for certain shortcomings.
The new remodel was tasteful and was done in a way that respected the previous property that it replaced, the Sahara. The remodel kept, preserved and refurbished what worked and tore down and improved what didn't work. Sahara was a popular spot for the Rat Pack and there is much history associated with the property. Can't say that about the boring, sterile, ice cold City Center.
A small pool, casino and rooms that are suitable for getting some sleep - again value is the theme for this spot. If its your first time to Vegas I would recommend something closer to the center of the strip - perhaps a mega resort so that you don't feel as if you missed out on something. If you have been to Vegas tons of times and feel as though you've seen the city this might be a great choice for you. Maybe your tired of nonsense novelty things like pirates or crazy looking pink flamingos.
Other great aspects of this property is that it is on a monorail stop and has a fun neighbor, Circus Circus - for the kids or all you overgrown adults. Stratosphere is also close by and offers an unmatched view of the city on their observation deck or the dining room below the observation deck.