I was trying to migrate from Blogger to Joomla. It seemed like it would be an easy, straight-forward process, but it was far from that. I first contacted support via chat and basically was told that their techs would look into it. I get an email the next day that gives me the same instructions that are on the website as if I didn't already follow them. Their instructions need to be re-written to include the basic info that i had to submit support tickets for.
Then when something FINALLY started to work (demo use), I go into the admin of Joomla to find that their software deleted 70 articles from my database! I had to take the website offline and rebuild from a backup for about 3 hours.
Their policy is that they don't give refunds unless their techs have a chance to run the migration for you. And why would I let your garbage software ruin my website again?
My advice... run the demo BEFORE giving them any money. And for those interested... I imported my Blogger XML file into the EasyBlog component. Then EasyBlog has a plugin that will make copies of your blog posts as articles. Free & done.