Thanks for a great server-side script!
I've abused the online version extensively to cover a lot of my site in 500-URL chunks by using different starting points and it seems to handle a variety of address formats better than any competing product that I'm aware of.
After poring over the pre-purchase documentation, I decided to get the stand-alone version primarily for the rich set of customization features. I am extremely pleased. Installation was well-documented and came off without a hitch -- even though I am an "intermediate" script installer at best.
It seems that those who have reported less positive experiences:
1.) Failed to RTFM.
2.) Are trying to overtax "budget" servers. and/or
3.) Are blaming the software for the vagaries of Googlebot.
So far, everything is running fine -- even though I have a HUGE site (based on a popular Web Services API.)
I've been lurking the support forum, and I'm also impressed with that side of the operation. Even though I don't anticipate needing support, it's great to know that it's available -- especially for such a low-cost application!