Here's BrightLine's link to the Princess "arrangement". It's a little ambiguous. The copy says to present your luggage at the originating BrightLine baggage facility. Your luggage must be marked with a Princess baggage tag for a Port Everglades / Fort Lauderdale cruise departure for a specific train departure.
It doesn't explicitly say they will deliver it to your room on the ship, but they certainly imply it. I would call BrightLine and seek written clarification from "BrightLine Offers" staff.
(The comparable deal with Virgin Cruises in Miami had the cruise luggage delivered by courier from the train to the ship, and on to your cabin. That operation ceased when the Virgin deal ceased.)
https://www.gobrightline.com/offers/princess-cruises
Placing a FREEZE on your credit files with the major players (Experian, TransUnion, and one other) will prevent the bad guys from checking your credit prior to getting a new credit card. It's not perfect, but it's a start. And it cuts down on the junk mail offering new credit cards...
My wife and I have a freeze on our files. We lift it when we need something, like a new card.
At Miami Airport, you leave the rental car center on a train or on public roads. If you choose to take the Don Shula Expressway instead of local roads, you will need some kind of Sun Pass or the rental car company's transponder.
At Orlando airport, I don't think you can get very far without getting on one of the toll roads. They are hard to avoid.
Yes on E-ZPass working in Florida, and newer SunPass Pro units working in the northeast.
Older SunPass, LeeWay etc transponders do not work on E-ZPass locations in the northeast. Your SunPass etc website accounts will tell you what model you have.
(Basically, the Pro model has additional circuitry which makes it compatible with the northeastern and midwestern systems. I used my SunPass Pro in NY just fine last week. Worked like a charm)
Individuals will have their own preferences, but driving on I-95 and Florida's Turnpike may not be for the faint of heart in Broward and Miami-Dade counties. It's not Mad Max bad, but it can be white knuckling as people pass you on both sides doing 100+ mph.
I usually take the I-95 express lanes where things are a little more disciplined.
The BrightLine premium lounge in Miami station is quite nice. There are sandwiches, salads, beer, wine, etc available for guests.
I believe BrightLine has plans to introduce a "cafe car" to its trains in late 2024. This additional rail car will provide hot food and cold beverages to all customers, for a fee.
Many "beach towns" in south Florida have placed rules on short term rentals to limit the weekend party house experience. Neighbors are often displeased by rowdy, drunken, late night activity, partying, parking etc.
That may show up as fewer homes available on the various home share services.
The Dania Beach (county) beach is very nice. Large, clean beach on the ocean. On a barrier island a few miles from downtown. There's a public bus which ends there, and many hotels offer shuttles to the beach on a schedule or will call basis.
Definitely worth looking at the area. It doesn't get anywhere near as many Spring break crowds as Fort Lauderdale or Hollywood.