Hi and welcome to SaleHoo, Suffian :)
I know I haven't used the supplier myself but yes you are right they are verified and trusted supplier of SaleHoo.
If you are a bit anxious, I suggest getting in touch with the supplier. Don't hesitate to ask them your questions - having your questions dealt with will help put you at ease when you finally decide to order.
Also a test order may be good, at least you will be able to see the product for yourself thereby increasing your confidence as a seller.
Hope this helps. :)