I've grown to think the rewards at Rizk aren't too terrible TBH, even the AMAZING WHEEL OF 5 SPINS I've made my peace with.
You get two wheels per level, a wheel and a bonus wheel, and even if you get the least valuable reward off them both of 5 free spins, that's still 10 spins at 10p. If you think about it long term, that's ÂŁ1 of wagering on a slot like Starburst per level, which over time will return 96p.
Generally speaking I'd expect to get a couple of levels off a ÂŁ100 deposit, so that's ÂŁ2 cashback on a ÂŁ100 deposit, or 2%, which I don't think is that bad.
In reality the wheels do award better prizes on a fairly regular basis, and the other offers they run are sometimes OK, for example they've got an easter egg thingy going on at the moment, where you get to open a SURPRISE EGG every day, and in today's egg I got a ÂŁ10 cash award for my next level up, and like the the rest of the rewards, it's all wagering free.
Certainly as a low-roller I feel overall that the rewards for playing at Rizk are better than they were at VS before I stopping playing there due to the RTP gimpings, and Rizk do of course run all the top RTPs, which is like 'permanent cashback' compared to playing the same games at VS with their 50% extra house edge.