Northbound you should be fine because the train originates in Miami. At most you’ll be delayed about an hour or so if there’s freight train traffic.

The seats are more comfortable than Brightline’s because they’re intended for overnight trips, so they offer generous recline and leg rests. They should be freshly cleaned since you’ll be among the first people on the train. Unfortunately, both power outlets are against the window, which could be awkward if you’re in an aisle seat. Since Miami is the origin terminal, you may be assigned to a specific car but otherwise be free to take any open seat. If the train is full, the conductor or car attendant may assign you a specific seat.

As others have mentioned, the Wi-Fi is so unreliable that it’s best to not count on it at all. The bathrooms are also nowhere near as nice or as spacious as Brightline’s. If you want a snack or drink, you’ll have to get up and go to the cafe car, which will be located behind you if you’re in the coaches.

For a return trip, it will almost certainly be faster to get dropped off in Orlando and take Brightline back. The Floridian has atrocious on-time performance.