Command line import 200,000 records.
I just completed for a client an import from the command of a 100k csv file that created 200,000 records in the application. It worked just fine. The command line import tool is proving to be a great way to import large sets of data or perform on-going integration work with your crm. Another positive is that you can setup a separate web-server just to handle the on-going integration work, so the main web-server that is being used for user requests through the browser does not get maxed out.