Review for Rainbow Hotel & Casino Review For Primo Google User Aug 18 '14 at 23:08 Last couple of times staying at the Peppermill Hotel have been very disappointing. Rooms are dirty. Bathrooms are moldy. Notified housekeeping and they came up to do the cleaning over. They did sweep up the previous tenant's hair from the bathroom floor, but left the dead moth by the garbage can and all the mold in the bathtub and something questionable on the toilet. I wish I could upload pictures here. For $140 a night, you should be able to at least shower without needing to wear flip flops. Won't be back. View full site to comment or like