I have been three times over the last 15 years.
You fly into the airport and from there transfer to a speedboat or flying boat. As soon as you land, you get rid of your shoes and socks. You wont need them for the duration of your holiday. So don't bother packing any extra. Even the seaplane pilots don't wear anything on their feet.
I've been to a couple of different island and they seem to be much the muchness to be honest. If you are into beach holiday's then you are on to a no brainer. They are beautiful. Each island is a resort/hotel. You go to the island and that is it though. You lie on the beach all day doing nothing apart from swimming, snorkelling, eating and drinking. You get your usual excursions. Fishing, desert island and maybe even an inhabited island. The inhabited island was pretty crap imo. It was just an exercise to sell you tourist tat and crap.. If you are into culture, then you won't find any in the Maldives. You'll probably get a Maldivian dance night once a week but that is about it.
In the Maldives you will swim with a million different types of fish and sealife. Manta Rays, Sting Rays, Turtles, Sharks and every beautiful fish you could ever want to see. It really is stunning.
Money. Each time I just took 300USD$. You really don't need cash in the resort. You pay during or at the end of your stay by credit card. I took cash to tip the house boys and waiters (who were mainly Sri-Lankan). They earn about $50 for a seven day week so I used to tip them about $50 a week.
Mozzies. They wont be a problem as each island is usually sprayed with insecticide on a weekly basis. Mozzies love me but on the Maldives I never had a problem.
Be prepared for rain. It can come out of nowhere. Rain like a demon for an hour then just disappear. Straddling on the equator, The temperature is the same the year round. About 80° constant, day and night. I
Hospital infrastructure. There's not really much. All the holiday islands are spread out over 100's of miles. The resorts I went to are also not very wheelchair friendly. Though that may be different for other resorts, If your partner is in or needs a wheel chair, then even getting to the island may be a problem. The islands do have doctors, but they may not necessarily be on your island, so in an emergency may take a day or so to get to you. So it's best to do your homework.
Would I go again? No. But then, I am not a beach lover. I get bored to tears sitting on a beach all day and I like to wander. So i did feel a little trapped on the islands. So been there, done that. There's a million different places on this planet I now want to see,