After being skeptical at first, Taku proved me wrong. Nice, solid tool, VERY friendly UI, support is great, load time is very fast and I cannot see a significant slowdown of my sites.

Their upcoming features are exciting, and changes they made since I fist installed it are very useful.

CON:
Not really a "con" but a missing feature that would make Taku even more powerful out of the box (without coding skills): it does not have display conditions yet.

Example: in some cases I would like to display the same widget on some pages but not all of a site; or, I would like to delay loading for a number of seconds; or, I would want to load it on scroll/intent/etc.. This is definitely NOT a deal-breaker though!

Taku proves useful and easy to use!