I got the same error as Mark
“Sorry but your import failed. Most likely, it cannot work with your webhost. You will have to ask your webhost to increase your PHP max_execution_time (or any other webserver timeout to at least 300 secs) and memory_limit (to at least 196M) temporarily.”
Tried doing the manual WordPress import from both the demo-content unzipped and the kadence-importer unzipped and get the following error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Would be happy to provide login info to site for further support – using 1and1 and tried under 2 different hosting packages