We stayed at SoBeYou on the first night of our honeymoon. We didn't arrive until 11pm, and left by midday the following day, so in fairness we weren't there for very long; but our experience was still very good. As we arrived so late there wasn't anyone at the desk but they'd left our keys, instructions, a map & a parking permit (it's zoned street parking but we didn't have any trouble finding a space) for us. We were in room 2, which was relatively basic but incredibly clean & comfortable... which was exactly what we needed after 20 hours travelling! We had everything we needed in terms of facilities; fridge, TV, wireless access, aircon, a good shower, etc, and breakfast was delicious pancakes served out by the pool!
The staff were really helpful, giving us plenty of advice on where to go in Miami, and also letting us use their phone to call our airline at one point. Location is great - 5 minutes walk down to Collins Ave but away from all the bustle.
All in all, a great find and we'd definitely stay there again!