First of all, great plugin! very useful and reliable.
The only issue I have is with manually downloading the zip file.
I know you are using a php file, but it's not that reliable method compared to ftp, and many times my browser stops the download in the middle, even if using a download manager (I get complete download, but the actual size is about 25% of the original php file I see on the server).
I would appreciate it a lot if your plugin would have an option to simply create a zip file on site.
And again, thanks a lot! Kelly.