Anyone ever rent from Sixt car rental?

[kandb]

We will be arriving at West Palm Beach and leaving out of Ft Lauderdale in April, staying for a week. I was pricing out a rental car for a while and they have been close to $500 for the week. I see that I can rent out of Sixt car rental for $176/week, all taxes included. Anyone ever use them? are they good? Thanks

 

[purple figment]

Here's a long thread about Sixt:
http://www.disboards.com/showthread.php?t=3151571