We set up an account with WebInterpret and what a mistake this was because we have had nothing but problems and the reasons are as follows:
Poor communication- You send them an email and they don't always respond.
Listings- The listing titles are translated incorrectly and the item specifics are not always translated for example the incorrect clothing sizes were listed
Stock Levels- The stock levels are not managed we had instances at the beginning where the stock weren't reduced and then even worse the stock levels were doubled when you sold something eg you had 10 in stock this amount was doubled to 20. We had to correct all of these listings ourselves and we had over 400 active listings!
You are charged £49 for all of this plus your listing fees and webinterpret take a percentage of your profit when you have to manage stock levels etc so doesn't this all defeat the purpose of the service they are offering you.
If you do decide to use them please beware of the problems you will encounter!