I just downloaded it, and I have to say... this plugin is really cool and extremely powerful.

Two things:

1) It needs to be more clear that your data needs to be in a "table" for the plugin to work. Unless I'm mistaken, the only place that is stated (except for the tutorials) is embedded within the screenshot on the homepage. Add a help or FAQ page, and highlight this point!

2) I'm not a fan of the personal license having restricted use in a domain environment. I have a domain controller in my house, and many of my IT-professional friends do too. My house is not a commercial space. I like the software, and I would definitely pay $28 for a license, but I think $50/year is too steep to be able to use this at home.