spalthof
My biggest complaint is that the licensing mechanism requires that the author's website also be up and running, which you have no control over. So when he's down, you're down, and there's little feedback on when (if) you'll ever be back.
Even if my site goes down, the licensing system will allow the license to continue functioning for another 30 days, unless you're installing it for the first time, which then has little to worry about.
The recent downtime was actually due to a transfer to a dedicated cluster server, which is done to provide even more permanent uptime.

