The first question you should ask anyone saying not to use a company is what their experience with the company is. I have actually used Fox. Fox isn't as horrible as those that say to stay away is. The prices are lower, there service isn't exactly the most customer focused, but the cars are as good as anything you will rent from any other company. If you do your homework and understand the T&Cs, the savings is real.
There is a reason they are cheaper. The way it works with airport concessions, they charge more for prime locations. You will see Hertz, Avis, Budget all before you see Fox. At MCO the big names are at the airport. Fox is off airport property. It once was Alamo in the 90s and hasn't really been remolded since.
The rental process at Fox is not the most efficient. The people are not always friendly. They will pressure you in to buying options. All you have to do is say no. Just make sure you are aware of the proof of insurance requirements and you understand tolls. All of the rental companies subscribe to the high pressure add on sales. This isn't exclusive to the off brands.
I'm not familiar with the Tampa location, but it looks like it is with all the other companies . The only advantage the majors would have is that you can skip the counter. You are really paying for convenience with the majors at that point and for hundreds of dollars, I'll stand in a line for a few minutes and deal with a shuttle at Orlando. If the price was the same, I would go with a major.
I would suggest signing up for the loyalty program regardless of who you rent from. Fox has a program. This helps soften the hard sale because they see you as a repeat customer and not treating you as a one time renter where they will try to get every cent out of you.
I don't love the off brand companies, but I like money. When it comes to car rental, I am renting a car, not an experience. If I can save money and get the same product, for me it makes sense. I'll deal with a shuttle bus and the hard sale. Some people would rather spend more for convenience. Nothing wrong with that. The off brands are not perfect, but if you are educated in your decision, you can save a lot of money.
Edited: 9:01 am, December 05, 2023