Honeymoon in Vienna

I've been home all day today, feeling sickly.  It's been all around me - at work, at home - and I think I'm finally succumbing, although I am hoping that by laying very low today and most of tomorrow, I'll feel better.  My brother will be in town from L.A. tomorrow night and I don't want to feel bad for the evening he's here!

I'm not so good with just lying around so while I did sleep a little, mostly I read and finished the book I've been working through and spent time searching online for flights to Vienna.

We're going to Vienna!! Not the move, but the pre-move visit to check it out.  Our Honeymoon.  In May.  It's quite soon and we've got to move quickly with our planning, but tickets skyrocket in June, so we decided to go for it.  I just got approval from work for a couple weeks off in early May and the planning has begun.  We haven't purchased anything yet, but did some good research today so I'm feeling very excited, despite being tired and achey.

We're also thinking about hotels vs. vacation rentals vs. other lodging possibilities.   Any recommendations?  Has anyone heard of/used CouchSurfing?