Miami Hotel Suggestions?

Hello, I´m going to Miami on May (only 3 nights stay) and I need a little help. My tour agency reserves a hotel that after I saw it´s a terrible hotel (Greenview South Beach). So I´m looking for another one that is cheap but is clean, safe, and that has a free parking. Do you anyone that has a nightly rate no more than U$129 with free parking? It has to be on Miami (South Beach or Downtown). I found the Hilton downtown on this price but the vallet parking is U$28/day **Very expensive $$$**.

I saw the Days Inn Miami Beach/Oceanside, the parking is little cheaper but I don´t if the hotel is clean?

Thanks.

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