The level up bonus looks great, the silver-gold1 for example which requires less than $100k wager and receive $180 total reward.
Compared to other casinos, the actual bonus is quite low which can be claimed from the VIP panel. The additional bonus amount has made it attractive there. The normal bonus amount is $50 for reaching the gold VIP rank. Although the current promotion has made it attractive, but Shuffle team should upgrade their level up bonus amount permanently to attract a part of the gamblers.
Hope Shuffle will consider about it later and maybe the current promotion of the revamped reward is to test and know the effect of the promotion. If it goes as what they expect, maybe they can extend the promotion and maybe they can make it permanent but for sure they need to calculate it first to make sure that it wont reduce their profit too much.