Free bet for new customers at Tornadobet

[Flyfisher]

I found a special welcome offer for new customers from: Germany, Switzerland, Austria, Poland, and Italy. On the first deposit of at least EUR 20 and a maximum of EUR 50, the stake from the first bet will be refunded if it is lost with a minimum odd of 1.8 (combined bets are also allowed). The refund takes the form of a free bet, which must be wagered once with an odd of at least 1.8 (the value of the free bet will be deducted in the event of a win). The corresponding bonus code “WELCOME50” must be entered when registering.

I would be interested if you know this provider and what your experience has been.