I like how easy it was for me as an amateur developer (and non-programmer) with no previous experience in this area, or any other software development tools at all! It took just one tutorial video by someone who has already used black fire before - very friendly user interface; simple but effective tool which does exactly what you need without too much fussing around required from users of such products. The only thing could be improved would probably have been if there were some more tutorials available online so we can learn about its features even better than through watching videos alone. This product solved our problem right away when trying out different options within php world regarding code optimization & speed improvements etc.. In fact i am still using them today since they are constantly improving themselves along time!!