Yup!
Been using it for 10 years+. I don't use a lot of boiled bait but when I do it's always the Shrimp. I had just dropped a bait deal back in ~2015 and was looking for something new. I'd bought 20kg of Essential B5 and was really struggling. Literally couldn't catch a cold. Given the track-record of the B5 I was reluctant to believe the bait was the problem but a pal of mine put me onto the Shrimp. On my first session with the Shrimp, 4 hours after casting out, I caught the big common I was after. It was like flicking a switch.... just started getting loads of bites.
Just yesterday afternoon, with the temps in my koi pond rocketing, I decided to see if the fish would eat boilies. I chopped up a handful of Shrimp and plonked it in each corner of the pond. Given my koi have never seen a boilie I expected they'd take a while clear it up. Wrong. It was gone in about 1 minute! They absolutely love the stuff.
I can't help here I'm afraid mate. The Shrimp is that good I'll not try anything else. I have 100% confidence in the stuff.