Used this daily on a recent trip to Thailand. I always come back from holiday with 30+ bites. Used this alongside mosquito milk and, while impossible to say which it was that worked best, the duo kept me to only getting bitten 3 times in 2.5 weeks.
It's not a bad shower gel either, does what you'd expect and the smell is quite agreeable
We used this alongside a number of other anti-mosquito measures, so hard to say if it was effective in its own right. However, it smelled quite nice as a shower gel - a bit lemony. It didn't "foam up" very much, but washed us quite well. Would buy again for a mosquito area