Ask HN: Good Cloud/SaaS accounting service?

My startup's decided to be a bit more organized on the financial side of things and are looking for a good SaaS accounting solution.

I found a previous Ask HN thread about this (http://news.ycombinator.com/item?id=317131) but it's almost 2 years old so I thought it'd be worth asking again.

Currently considering:

http://www.xero.com/ http://www.rhinoaccounting.com/ http://www.liquidaccounts.net/ http://quickbooksonline.intuit.com/ https://www.clarityaccounting.com/

Any recommendations? We have no experience with this stuff.

Obviously cheaper is better, but we don't mind paying a bit for quality.

Thanks