I've not tried that specific vibrator, but I have tried others very similar. The vibrations were moderately strong, but the patterns are limited.
I've loved prostate stimulation for many years now and have tried probably over a thousand dollars of toys, stimulators, and vibrators, from simple items costing only a few dollars to very expensive devices costing hundreds. Although I don't have any actual data, my opinion is that human anatomy and sexual arousal are so varied that it's difficult to specify which toy or device will work for every person.
Everyone has to discover for works for them -- size, shape, length, material, vibration & strength, depth, texture, motion, electic stim, constriction around the penis or balls, remote control -- the list goes on. And our interests change from session to session.
The most intense prostate stimulation I've ever received was from the hand of a therapeutic massage specialist. HIGHLY RECOMMENDED! The second most intense was a combination of two toys-an Aneros Promax plug being vibrated with a massage gun.
Happy hunting, play safe, and good luck.