I used the free Berlin service for a couple of years after Mailgate collapsed in the UK. Call me old fashioned if you like, but having eaten at their table for free, I feel I ought to contribute something in return and am cheerful to stump up the measly sum they asked of me.
It's only a couple of pints of cyder and a pie, after all, in exchange for a completely invisible, fast & reliable service.
I hope they do well out of it ;o))
Just my humble opinion, of course .......
regards,
Kim Siddorn.