I've purchased the pro version of this plugin (and have yet to receive it) and I have to say publicly because this author refuses to offer support to anyone who pays less than $100 USD for a developer license:
Out of all WP plugin authors I have dealt with, I have to say this is one of the most unethical authors I've made the mistake of buying from because:
1) they ignore any support emails even if your are a BUYING customer (you have to buy very expensive developers license if you want any support)
2) You have to wait 48+ hours for your plugin to be delivered and if it's not delivered there's no official means of support to find out why or get attention.
3) The pro version actually just combines what multiple other free plugin do by themselves and adds very few features that the free versions don't.
4) NO SUPPORT (unless you pay a ton of money)
So what kind of respectable developer does not provide support to paying customers? let me tell you, none. So unless this plugin author does the right thing by being a decent business person in providing real world ethical solutions, avoid the pro version of this plugin like the plague.
Hopefully some other developer out there reads this and develops a competing solution with more reasonable terms of service.