Keep in mind with PL you have no idea if you'll be on the first or last flight of the day. Don't use PL if you have plans for 8/23. You could wind up getting in at midnight.
There are lots of posts from people who have gotten good flights but just as many from people who lost the first and/or last day of their vacation.
I'd check for flights into Tampa as a way to save $ before I'd use PL.