sonder was developed to overcome Manny Barriers to full integration of blockchain technology into e-commerce market to solve problems related to slow transactions and transaction fees. They have created Manny technical decisions that will help in solving most of this problems. Not long ago into The exchange platform it began too lose form and as it's stands it has stopped functioning and it's promises has not been kept. The platform lacks popularity, so the people who used this platform are very few. But, never the less, the platform has appeared to be a scam, any project which cannot meet the standard of most rated crpyto platform is categorized to be a non development platform and it will be advised to do away with such project. Manny people look for project that support low fees and when they read about a platform which has an information about low transaction rate, they forget to understand the basics of the platform before using it, most people lose their funds in such investment. So it is advisable to make more research about most projects before using it. Sonder is not existing, it will be safe if you don't try