My posts are never leaving the "Documents to be Synced" queue, and the domain I specified doesn't appear to exist, at least according to my CloudSearch dashboard. The 'last synced' time is always n/a.
I tried resetting Lift and setting the domain to a domain I created manually on CloudSearch, and it recognized that the domain existed when configuring Lift, but no documents were ever added to the CloudSearch index. In this case the 'last synced' time changed as the 'sync' happened, but there was no content in my index, and search always returned zero results.
I'm running this on a local development server, so if Amazon needs to actually visit the pages to index them, then this could be a problem, but I don't know if this is the case.