I was very cautious over buying a plugin that was so core to my process. I went for this one in the end as I saw a reasonable amount of communication from the developer in the support forums.
I'll be honest and say that the plugin is a little quirky and it took me a while to get my head around how to set it up properly however the developer was very good in sticking with me until I did so even during their holiday period.
I think I may need further support and maybe additional functionality/customisation but I feel confident that I will be able to work with the developer should that need arise.....and that's always a very important thing for such an important plugin.
Fantastic addon to our wordpress site. Does everything as it says. Had a teething problem but WOW the support was excellent the team got intouch through skype and sorted our problematic site out so it works like a dream.
It was in the early stages of development when I purchased the plugin (I think I was customer no. 2)... I had a few issues with initial set up but the customer support was excellent.
We had a few Skype calls and emails (with prompt replies) and things are working super smoothly now. They have implemented a few of the features that I had mentioned and would highly recommend this plugin.
Definitely beats paying an expensive monthly fee for other solutions that are out there. Looking forward to future releases as it keeps getting better and more user friendly with each version =)