Worst experience after spending *******$ and waiting for a year you will get garbage product.
Wasting time and scamming is their specialty. It will be a revolving door of guys you have to talk and it's all your fault they just need your money. When the project will start they start with the design which will complete in 15 days they will get their 50% money without delivering the product. After that, you are stock if they feel like they will do something otherwise nothing. So after spending 5000$ you are screwed.