Quality of product
I am user to this product for over more than a year and I found it easy in customization and the quality of calls far more better than other providers in UK. The best thing of this product is it's customer portal u can easily make recharges with online payment facility and can also check the latest call records. Overall it user friendly, I would highly recommend people if they looking UK based provider must go for this product.
Till now there is nothing I didn't liked about this product because they had team with quick response and action if there are any link failures.