What are the advantages or disadvantages of Libre Office compared to Microsoft Office?

The clue is in the name. It's a libre (free) Office suite, similar to Microsoft Office. In appearance it resembles the "classic" MS Office before the whole ribbon thing happened.The advantages I can think of off the top of my head, without cheating and looking at the website are:

• It's free (as in speech) which means you can change it and rebuild it should you desire.
• It's cross-platform in that it's written in Java, so it'll run on pretty much any platform
• Since it and its file formats are open you will still have access to the source in years to come and won't be stuck with not being able to open old legacy documents, like MS Office et al have demonstrated in the past
• It defaults to using open standards, rather than Microsoft's "open" standards which aren't really that open
• It'll save PDFs without hassle
• You can download it to your computer without having to give up any personal information
• It's not a gazillion gigabytes to download
• You can install it on as many machines as you like
• You can give a copy to your friends

The disadvantages:

• It doesn't do a lot of the more obscure things you can do in MS Office (if you don't know what they are, it's not surprising, most users are unlikely to notice)
• It doesn't come with technical support as part of whatever package you buy
• It doesn't% handle MS' proprietary formats, or indeed their fake "open" formats (which can contain binary information which isn't in the spec)
• The table handling in the word processor is worse than the one in MS Word, although since that's pretty awful anyway I don't see this as a problem. If you're using funky tables in your document, you probably shouldn't be using a word processor in the first place
• It's a bit slower, and uses up a lot of memory, because Java.
• I think change tracking in MS Office is more advanced, or perhaps it isn't even available in LO, I'm not sure.

I didn't look any of these up, because this question could be answered as easily by google, so I'm giving you a rundown of the things I can pull out the air.Basically all the benefits stem from LO being free software. Libre in this case refers to freedom (as in freedom of speech) rather than monetary cost.