I discovered Carol’s work through a friend. Despite my English not being very advanced, she was always helpful and very attentive in supporting me in developing the theme. She made an exception for me and supported me with some widgets. She is an incredible professional, I recommend her 100%!

Carol is truly one of the best. I love her designs so much. They are always so fresh, clean, beautiful coding.. and her designs are just incredible. If you have a question or anything, she's always super kind and helpful. I can't recommend her or her designs enough!

I love Carol's designs. She's one of those designers that you can always trust to go the extra mile to add new and interesting attributes to her themes. Plus they're really easy to work with even if you're limited in your HTML knowledge.

Carol's designs have always been my go-to design of choice. Besides being super professional, they're beautiful and original, the coding is well crafted. It's everything a fansite owner needs.

There are quite a few designers that create themes for both Wordpress and Coppermine, but Sin21 has far the most modern, "clean" designs I've come across. Really pleased with the presentation.

I've been buying from Sin21 for years now and I'm always impressed with the designs. They are fresh and professional looking and would definitely recommend buying from them.

The work on this site is spectacular. We just purchased a theme and it could not be easier to customize. No problems at all. The designs are beautiful, clean and responsive. We will be back for sure!