The lobby is definitely understated and, at least in the rendering, has that "private check-in" feel rather than the "cavernous Las Vegas lobby check-in for 6,000 rooms" feel. Maybe they'll have "sit down at a desk with your host" check-in, but I doubt it.
Very understated compared to Destino.
It's funny that Destino feels like (to me) a Deluxe tower at a Moderate Resort while with Riviera, it seems more like a Moderate Tower even though it's supposed to be Deluxe.
They had to plus the Destino for big-buck conventioneers, so, I guess that's why it feels more deluxe. The Riviera, however, doesn't need grand meeting places and so it has just a one floor lobby.
If it weren't for the balconies and the Skyliner, I wouldn't have second thoughts about classifying the Riviera, in my mind, as a Moderate.