You are not going to get decent Maine lobster in Florida, period. There is no good local seafood restaurant that serves true Maine hardshell lobster. None.
There are some really good local seafood restaurants, but lobster is not a feature.
Now, having said that going to Red Lobster in the greater Orlando area for your first experience with lobster is not a terrible idea. You won't pay an exhorbitant price for it like you will at any restaurant that serves it at Disney.
However, eating a whole cooked lobster is tricky business, particularly since you've not done it before.
You may want to order a dish with lobster in it, or ask the chef at Red Lobster to prepare it "lazy" for you. They'll do that if you ask. That simply means that they've opened it for you and removed all the meat.
Now, if you want to dig in and do it yourself that's fine! Just be sure they've cracked everything for you. Oh, and don't pass up those little legs that look to be more trouble than they are worth! They have some very sweet meat in them and are fun to "work on."
Wherever you do decide to go, enjoy!