I have been there several times for appts and it is just as nice as many of the upscale places on the Strip.  They did not check keys at the elevators during the day.  I cannot say if that changes in the evening.
It is a bit of a drive for some, though.  That is something you might want to consider

It is a south of the strip but it's really a nice property. It is on the upscale side and they have lovely rooms and great restuarants.  Ths is a bit of a drive from the main part of the strip but I do like it. For me though it's not a far drive and I can be there in just a few minutes.

driving distance which I did not know about. Also glad to hear the rooms are nice.

real good buffet , highly rated, and only one in town that comes with free
beer and wine
and
doesn't cost an arm and leg

if you are into buffets that is

Vegas's gift to the culinary world