Taxi or pre-arranged driver from Rome's airport?

Taxi is fixed rate 50 euros

This question comes up a lot
Do a few searches for advice/info on taxi vs driver

A driver won’t be much more than a taxi

ETA
Here is one thread with general taxi info and a few recommendations for drivers
https://community.ricksteves.com/travel-forum/italy/taxi-from-rome-fco-to-trastevere-4-people-with-bags

Taking a taxi is fine. Just be sure to go to the official taxi line. Avoid all the free lancers that might approach you in the terminal. On the other hand, after a long flight, being a little jet lagged, and on unfamilar turf, there is nothing better than having a private driver meet you inside the terminal and wisk you to your hotel. The fee should only be a little more than a regular taxi.

A company known as Rome Cabs is definitely a car service and not a taxi company despite the name. We send an email detailing our needs and get an answer within 24 hours. This is the link to their site. https://www.romecabs.com/.

Our hotel arranged a regular taxi for our morning departure from Rome. It was reasonably priced with a very kind driver and a nice vehicle too. It was just after daylight so we were able to enjoy a rather pleasant ride to the airport.

If your hotel makes arrangements for you, you might get a regular taxi, a car service, or the desk clerks cousin, or ?? Happened to us once in Rome and it was the desk clerk's brother-in-law moonlighting. Nothing adverse happened - there were four of us - but we just feel safer dealing with an established company.

Rome-chaffeur.com and rometaxi.com are both excellent pre- arranged transportation services from FCO to central Rome. We have used them both.

The taxi fare is a flat €50 all inclusive for up to 4 passengers. It is a fare imposed by the city. There is a taxi stand in front of every terminal with lots of taxi cabs lined up. There will be people in line before you but never had to wait more than 5 minutes, including last June.

A pre arranged car service will have a car driver waiting for you at the arrival lobby with a sign bearing your name. I think most car services charge €65 for up to 2 people or €70 for 3 or 4.

Your choice.

Hi Greer,
Excited for you to be traveling on your own for the first time to Rome. In the past, my philosophy has been, "I can get us there by public transport, or walk. Not necessary to take a taxi." We've done that in other cities, on other tours.
However, just last night, we decided to book a pre-arranged driver through our hotel, Smeraldo, rather than deal with a taxi for several reasons. We will depart our west coast city at 11:40 a.m. and not arrive in Rome until the following afternoon at 4:30 p.m. I figure we will be in a zombie state and may not be able to think clearly.
I knew the fixed rate for a taxi is 50 euros; private is 60 euros, cash. We will each have a 22-inch suitcase with a carry-on bag + backpack. Although we have been to Rome once before, we wanted the easiest transportation to our hotel. I think Rome takes a certain "mindset," and I think it will take me awhile to adjust to being in Rome.
I am frugal, by nature, but in this case I am very willing to pay an extra 10 euros to see someone holding a card with our last name, and a car waiting. The rate quoted is for "up to 3 people". I told my husband that maybe we'll find someone at the airport who'll share the ride with us!

Thanks to everyone who replied! I've opted to go with a pre-booked driver. Someone waiting for me with a sign will be a great start to my first Rome visit. I appreciate all of the recommendation.

Happy travels!
Greer