I stayed at the Marriott South Beach while setting up for a live music concert that was to be held in a near-by club. I found that the accommodates were spacious and really inviting. Even though I shared the room with a friend, I never felt that I was in her way or vice versa. The bathroom was very large and perfect for two girls getting ready for a concert with clients.
Staff members were always attentive and helpful, valet guys quickly became our friends despite the fact that we dropped off the car and picked it up three days later.
The location is perfect for walking up and down Ocean Drive and has a quieter beach section. We found ourselves in the Starbucks downstairs many-a-morning, which had a very convenient back entrance for hotel guests.
Overall: It's not super touristy, but it's my pick for sure.