Took the south Florida brightline 3 times, recently, to get to the airport (+2 times for leisure travel) and it was pretty good.

Get there by rideshare in 20 mins, trains on time, 1hr to city, 10 min shuttle to airport. On time every time.

I moved my luggage by hand more WITHIN the airport than getting to the airport.

Would do it again

Its gatwick, 3 lines go here, one every 15 minutes. I have always taken the train to either Heathrow or Gatwick, there's always been more than enough space to accomodate luggage, idk what people here are on about.

A train system is a much safer bet than praying traffic won't be bad

Trains are literally scheduled according to a timetable... traffic isn’t

I mean, it probably depends on the train line? Only airport train I’ve ever had issues with was Manchester, and more due to an absolutely ridiculous ticketing situation than anything else.