I was recently at the Standard for a conference - being that it's a 4-star property, I kind of expected a 4-star experience, which was definitely not the case.
First, the good: the Spa is excellent (both services and facilities), the grounds of the hotel are gorgeous, the gym is great, and some staff members were awesome and very helpful (Terri at the Spa, Fernando in Reservations, and Michelle at the Lido Restaurant). They have a really comprehensive yoga schedule, and a beautiful meditation/yoga area. The restaurant had very good, healthy food.
The bad: the rooms are very "rustic" - we had a ground floor Lush Large room, and I must have had to get rid of 3-4 millipede bugs every day (from the floor, walls and ceiling). There were a lot of bugs (which I guess is normal in FL, but I would not expect them in a room at a 4-star property). The floor in our room had water damage. The "desk" is a folding table, and the "nightstands" were small wicker picnic baskets. There was no hotel guide in the room either. For the "discounted" rate of $225-250/night (Miami in August), I would've expected better. The wireless internet signal was not available in my room, so I had to lug my computer to the lobby every time I wanted to go online. I had a friend staying with me in the room, and we requested a blanket for him (he slept on the daybed) - apparently, this 4-star property has no extra blankets on the premises, because they brought him 3 sheets and said they were "out of blankets". I have never been in a hotel that does not provide extra blankets, and certainly not in one that claims to be a 4-star property. The restaurant was pricey for small portions (great food though), which is to be expected - but the kicker is that they include a 15% gratuity on each check and don't inform the customer of this (which I find shady). I also think that cheats the waitstaff out of additional tips - I typically tip 20%+, but after leaving a full tip on top of the 15% at one meal, a friend informed me that they already added gratuity - so feeling duped, I did not leave any additional tips at meals the rest of the stay.
I enjoyed my time there, but for the money they charge, I think it would be better spent staying at a real 4-star hotel that's actually on South Beach.