I bought it a 3 weeks ago but before I asked two times the author if I can use banners in it. The answer was two times positive.
What happened when I bought it? The banners simply don't work and what worst the support doesn’t answer to my emails. I wrote to they forum but there is no answer.

The second thing is changing fonts, colors and background. You can change some text colors and background only in the code but you can't change everything!!!
When I ask them on their forum and via e-mail about:
"...Still don't now how to change it :
-"Pause" and the two signs around navigation numbers
-Background whole part of navigation
-Background whole part where is title
-background of picture"

Of course haven’t got any answer.
The last thing is that you cannot use the component in two different parts of your website.

After purchasing 3 weeks ago, I can write such review.

I don't see any bug in it, very nice type of Transition effect, haven't see such a good gallery :)
However I would fix it for advertisement banners, links and some description to them, think about it
Great work!