It is easy to use, easy to configure, performs exceptionally well, and delivers as promised.
i bought the all features addition, also. its fantastic. throttling, cron job, templating, etc. all very easy to do. i am no developer, also.
i still can't get over the cost savings versus paying for something like campaignmonitor, or iContact, etc. I send out over 35K emails weekly. saves me into the several hundreds to thousands. incredible.
Statistics are great also. maybe you could add a visual heat map of the areas with the clicks - that would be the best!
incredible extension. thanks guys!
I do have some issues that I would like to raise.
Basically, it centers around the ability to develop customized templates, and some of the issues that surround it. Other issues include some documentation around tags, the way the .css file system works against templates, inner modules, etc.
I have seen some sub-templates for K2. I wouldnt call them great. just standard. I think to build a sub-template such as by a company like rocekttheme is difficult with the current state of the code. So, i hope future versions correct this.
All in, K2 is a magnificent extension, and much credit goes out to Fotis and Joomlaworks for the genius, will power, and stamina to develop it.
I look forward to the anti-spam version (per recent owners response). I think this would be incredible upgrade, and needed!
New version stopped all spam to me!
Users still prefer it, though..! :-)
Thank you for your reviews and votes.