I had an event at the Las Vegas Convention Center and so was looking for a place nearby. The apartment is not far from the LVCC (about a 10-minute walk, depending on which convention center hall is your destination). It's also not far from The Strip (the Wynn & Encore are just down the next block over), though during the summer you may want to get a ride instead of walking the distance in the heat. There is also a monorail stop at the LVCC and I believe the LVCC LOOP now connects to a station at Resorts World.
The apartment is very clean and the photos are accurate. It is a good place for relaxing after a long day at the convention center. The apartment has basic amenities so if you want anything extra for your Las Vegas experience you may want to bring it with you or pick it up at the store (the nearest stores are probably not accessible by foot in the summer heat). I didn't cook for this trip so I didn't use the kitchen, but if you have any questions about what is available in the kitchen, I'm sure Maria would be happy to answer them. I found Maria to be a very good communicator and very accessible by phone, prompt in answering any questions. That helped make for a stress-free stay. If I have another event at the LVCC in the future, I would definitely consider staying at this apartment again.
While the apartment is not near The Strip, there is some ambient noise during the day and in the evening, so if you are very sensitive to sound, you may want to bring noise-cancelling headphones. I would judge the ambient sound level to be about average for an apartment complex. Also, Las Vegas, despite the summer heat, is like most major US cities and has homeless persons, so just be aware that they may be present if you are walking to The Strip or even around the neighborhood, down Paradise Road.