Custom Attribute Range Slider

Greetings,

I am really satisfied with this plugin and would like to have custom attribute slider as it is in your demo site:https://demo.products-filter.com/?swoof=1&slider__weight=10-100

But before proceeding towards the premium plan I would like to make sure that the slider will work with my custom attributes properly for that can you allow the trial version or something like that before purchase.

Or if I am not satisfied is it possible for the refund.

Please let me know at earliest.

Thanks in advance.