Any Info on Firefly

Firefly is running over a $100 cheaper than anyone else for my July 20-26 visit. Anyone have experience with them? $239.41 for midsize (not exactly cheap, but way better than $350 up).
Of course I keep checking every day.

Make sure you check the rental agreement - some Firefly rentals only give you 25 free miles. But prices will almost surely drop for your dates anyway. I always keep an eye on Dollar and PayLess....

Actually the first booking was for unlimited miles. I've gone back and changed it to a 30 mile one with another $100 off (over $200 less than all the other sites, including Costco). Its 20 cents a mile over and I seldom go more than 200 miles on a Vegas trip so an extra $40 still leaves it way under competition.
Hopefully I'll see Dollar, Budget or Alamo get competitive the closer we get to July.