It’s not the only game in town- there are many great phono preamps out there that offer a trial period, either sold directly or through online dealers that offer a trial. I’m old enough to have been disappointed by a number of expensive audiophile products and their reviews.
Good luck in your quest, but don’t get too caught up on one product and it’s reviews. Ten years ago I was laid up with shoulder surgery, and auditioned DACs from four different companies. Sure, it costs shipping to send them back, but it was eye opening. I only say this because phono preamps are relatively light and small to ship, nothing like amplifiers and speakers.
Spoiler- I kept what I had because the cost of ‘upgrading’ was not justified.