<human>: Can you provide a brief rundown of the text in within 3 sentences?

Hello, /r/travel, I will be traveling to Reykjavik in about a month, and I'm looking for a bit of advice. Thanks for the help.

**1. What attractions should I be sure not to miss?** I already plan to go to the Blue Lagoon, and I'm excited to go to a few museums on Aoalstraeti. Is there anything else that I should be sure to do there? Which museums and galleries would you specifically reccomend?

**2. Which is better: [Hilton Nordica] or the [Icelandair Marina Hotel] I'm having a huge dilemma. The Marina would be a little more expensive with the deal I'm doing, and there are some pretty mixed reviews on Google and TripAdvisor. However, it's really close to a lot of things, and that is a huge bonus. The Hilton is a little further outside the main area, but it seems like it would be a safer bet. Which should I do?

**3. How reliable and easy to use is the bus system?** I have heard of the Reykjavik Welcome Card, and that seems like a very good deal ($25 USD for 72 hours.) However, it is a little iffy how useful this would be. Would the buses be a reliable (and now free) option to get us to a lot of points of interest? If they are, it might affect the hotel question above.

**4. What are some good restaurants?** Both of my two hotel choices provide breakfast, and most of our tours involve lunch, but what dinner places would you recommend? I'm looking for something that we could walk to or get to by bus, and I am very adventurous with my eating. A scenic place that offers Puffin and/or Whale is ideal. 

**4. What other experiences do you reccomend?** I want to get as much done as I can. I know that 4-5 days is a short time, but that's a hard limit. Please don't lecture me on that. I want to do the best things I can in those few days.
<bot>: I have some time in Reykjavik. I want to know what restaurants, sites, and attractions are the very best.***