Ease of use and flexibility of the platform.
It is very colorful and quite easy to use with a lot of wow moments. And it is cheap and this is the great thing about it. I am using Tellody to perform many many marketing tasks. This is single platform for surveys, vouchers, sending SMS, sending Email and...
My biggest complaint is how slow each page is to load. Sometimes it will take up to 30 seconds (or longer!) for drop-down menus to appear, images to reload, previews to load, etc. It's almost frustrating enough to not use Saithru at all.
The system is very different from others and is sometimes hard to use