No personal experience as I'd never spend a dime on any product that hack puts out. A quick glance at the label of 3 Test tells me you can likely expect, well, nothing discernable in terms of "test boosting" efficacy, like most such products.
And from all the drama online/YouTube lately about Turk Builder and some other turkesterone products that have been tested, I think it's safe to say it's complete garbage.